Loudmouth
Louse up
Lousy with (something)
Love at first sight
Lovely weather for ducks
Lover's lane
Low man on the totem pole
Lowdown
Lower one's sights
Lower one's voice
Lower oneself to (some level)
Lower the boom on (someone)
LP
LPG
Luck out
Lull (someone) into a false sense of security
Lull (someone) to sleep
Lull before the storm
Lunatic fringe
M
MA
Mad as a hatter
Mad as a hornet
Made for each other
Made to measure
Made to order
Maiden voyage
Main drag
Make (it/an event)
Make (someone or something) available to (someone)
Make (someone's) blood boil
Make (someone's) blood run cold
Make (someone's) flesh crawl
Make (someone's) hair curl
Make (someone's) hair stand on end
Make (someone's) head spin/swim
Make (someone's) mouth water
Make (someone's) position clear
Make (someone) eat crow
Make (someone) look good
Make (someone) look ridiculous
Make (someone) sick
Make (something) from scratch
Make (something) out of nothing
Make (something) right/good
Make (something) to order
Make (something) up to (someone)
Make (something) worth (someone's) while
Make a bed
Make a beeline for (someone or something)
Make a big deal about (something)
Make a break for (something/somewhere)
Make a bundle/pile
Make a check out to (someone)
Make a clean breast of (something)
Make a clean sweep of (something)
Make a cold call
Make a comeback
Make a day of it
Make a dent in (something)
Make a difference
Make a face (at someone)
Make a fast/quick buck
Make a fool out of (someone)
Make a fuss (over someone or something)
Make a go of (something)
Make a great show of (something)
Make a hit
Make a killing
Make a laughingstock of (someone)
Make a living
Make a long story short
Make a meal of (something)
Make a mistake
Make a monkey out of (someone)
Make a motion
Make a mountain out of a molehill
Make a name for oneself
Make a night/evening of (doing something)
Make a note of (something)
Make a nuisance of oneself
Make a pass at (someone)
Make a pitch (for someone or something)
Make a play for (someone)
Make a point
Make a point of (doing/saying something)
Make a practice of (something)
Make a reservation
Make a run for it
Make a scene
Make a silk purse out of a sow's ear
Make a stink (about something)
Make allowances for (someone or something)
Make amends for (something)
Make an all-out effort
Make an appearance
Make an appointment (with someone)
Make an example of (someone)
Make an exception (for someone)
Make an impression (on someone)
Make an issue of (something)
Make an offer
Make arrangements for (someone or something)
Make as if (to do something)
Make away with (something)
Make believe
Make book on (something)
Make chin music
Make cracks (about someone or something)
Make do with (something)
Make ends meet
Make eyes at (someone)
Make for (someone or somewhere)
Make free with (someone or something)
Make friends
Make fun of (someone or something)
Make good money
Make good on (something)
Make good time
Make hay while the sun shines
Make heads or tails (out) of (something)
Make headway
Make it
Make it as far as
Make it hot for (someone)
Make it one's business to (do something)
Make it to first base
Make it up to (someone)
Make it worth (someone's) while to do (something)
Make life miserable for (someone)
Make light of (something)
Make little of (someone or something)
Make merry
Make mincemeat out of (someone)
Make mincemeat/hamburger out of (someone or something)
Make mischief
Make money hand over fist
Make no bones about (something)
Make no difference to (someone)
Make no mistake (about something)
Make nothing of (something)
Make of (someone or something)
Make off with (someone or something)
Make one's bed and lie in it
Make one's blood boil
Make one's feelings known
Make one's hair stand on end
Make one's mouth water
Make one's own way
Make one's toes curl
Make oneself at home
Make oneself conspicuous
Make oneself felt
Make oneself heard
Make oneself scarce
Make or break (someone)
Make out
Make out (a report/application)
Make out (something)
Make over (something)
Make overtures to (someone)
Make peace with (someone)
Make points with (someone)
Make room for (someone or something)
Make sense
Make sense out of (someone or something)
Make short work of (something)
Make sure
Make the best of (something)
Make the cut
Make the grade
Make the most of (something)
Make the scene
Make time for (someone or something)
Make time with (someone)
Make up
Make up (something)
Make up (something/a story/an excuse)
Make up (something/money/time)
Make up for (something)
Make up for lost time
Make up one's face
Make up one's mind
Make up with (someone)
Make use of (someone or something)
Make waves
Make way for (someone or something)
Make/spend/lose money hand over fist
Man in the street
Man-about-town
Man-to-man
Many hands make light work
Many is the time
March to (the beat of) a different drummer
Mark down (a price)
Mark down (something)
Mark my word(s)
Mark time
Mark time (to music)
Mark up (a price)
Mark up (something)
Marvel to behold
Match for (someone)
Match made in heaven
Matter of course
Matter of fact
Matter of life and death
Matter of opinion
Matter of record
Matter-of-fact manner/way
MC
MD
Meal ticket
Mean business
Meant to be
Measure up to (someone or something)
Meat and potatoes
Mecca for (something)
Meet (someone) halfway
Meet one's end/death
Meet one's match
Meet one's Waterloo
Meet the requirements (for something)
Meet up with (someone or something)
Meet/find the right girl/guy
Meeting of minds
Melt in one's mouth
Mend fences with (someone)
Mend one's ways
Mention (someone or something) in passing
Mess around/about
Mess up
MIA
Middle of the road
Might as well
Milestone in someone's life
Milk (someone) for (something)
Milk of human kindness
Million and one
Million dollar question
Million miles away
Millstone around (someone's) neck
Mince (one's) words
Mind goes blank
Mind is buzzing
Mind is in the gutter
Mind is on (something)
Mind one's manners
Mind one's own business
Mind one's P's and Q's
Mind over matter
Mind the store
Mind you
Mind-boggling
Mind-numbing
Mine of information
Mineral rights
Miscarriage of justice
Misplace one's trust in (someone)
Miss by a mile
Miss out on (something)
Miss the boat
Miss the cut
Miss the point
Mistake (someone) for (someone) else
Mix and match
Mix-up
Mixed bag
Moment of truth
Money burns a hole in (someone's) pocket
Money doesn't grow on trees
Money is no object
Money is the root of all evil
Money talks
Money to burn
Monkey around with (someone or something)
Monkey business
Monkey on one's back
Monkey see, monkey do
Mop the floor up with (someone)
Mope around
Moral turpitude
More (something) than one can shake a stick at
More and more
More dead than alive
More fun than a barrel of monkeys
More often than not
More or less
More than (someone) bargained for
More than one can bear/stand/take
More the merrier
More to (someone or something) than meets the eye
More to (something) than meets the eye
Morning after (the night before)
Move heaven and earth (to do something)
Move in on (someone or something)
Move into (something)
Move the goalposts
Move to (do something)
Move up (in the world)
Movers and shakers
MP
MP3
MSc
Much ado about nothing
Much in evidence
Much sought after
Muddy the water
Mull over (something)
Mum's the word
Murder on (something)
Muscle in on (someone or something)
Music to one's ears
Musical chairs
Must have
Muster up the courage
My foot!
My goodness/my God
My gut tells me
My one and only
N
Nail (something) down
Nail in (someone's) coffin
Naked eye
Name (someone) after (someone or something)
Name of the game
Narrow escape
Narrow-minded
NASA
NATO
NB
Near at hand
Neck and neck
Neck of the woods
Need (something) like (one needs) a hole in the head
Need (something) like a hole in the head
Need (something) yesterday
Need one's head examined
Needle in a haystack
Neither fish nor fowl
Neither here nor there
Neither hide nor hair (of someone or something)
Nervous Nellie
Nest egg
Never fear
Never in one's life
Never mind
Never would have guessed
New blood
New broom sweeps clean
New deal
New hire
New lease on life
New person
Next of kin
Next to nothing
Next-door neighbor
Nice and (some quality)
Nickel and dime (someone)
Night on the town
Night owl
Nine times out of ten
Nine-day's wonder
Nine-to-five attitude
Nine-to-five job
Nip (something) in the bud
Nip and tuck
No bed of roses
No cigar
No deal
No dice
No doubt
No end
No end of/to (something)
No flies on (someone)
No go
No great shakes
No hard feelings
No holds barred
No ifs, ands, or buts about it
No joke
No kidding
No laughing matter
No love lost between (two people/groups)
No matter
No matter what happens
No picnic
No point in (something)
No skin off (someone's) nose/teeth
No skin off (someone's) teeth/nose
No sooner said than done
No spring chicken
No sweat!
No trespassing
No two ways about (something)
No wonder
No-brainer
No-show
No-win situation
Nobody in his/her right mind would do (something)
Nobody's fool
Nobody's home
Nod off
None of (someone's) business/beeswax
None other than (someone)
None the wiser
None the worse for wear
None too (something)
Nose (someone) out
Nose about/around (something)
Nose into (something)
Not (someone's) cup of tea
Not a bit
Not a dry eye in the house
Not a lick of work
Not a living soul
Not a moment to spare
Not a snowball's chance in hell
Not able to call one's time one's own
Not able to go on
Not able to see the forest for the trees
Not all (someone or something) is cracked up to be
Not all there
Not at all
Not bat an eye
Not bat an eye/eyelid
Not believe one's eyes
Not beyond the wit of (someone)
Not born yesterday
Not breathe a word (about someone or something)
Not breathe a word of it
Not buy (something)
Not by a long shot
Not enough room to swing a cat
Not for a moment
Not for all the tea in China
Not for anything in the world
Not for hire
Not for love nor money
Not for love or money
Not for publication
Not for the world
Not give (someone) the time of day
Not give it another thought
Not give two hoots about (someone or something)
Not give/care two hoots about (someone or something)
Not half bad
Not have a clue (about something)
Not have a leg to stand on
Not have a snowball's chance in hell
Not have anything to do with someone
Not have the heart to do (something)
Not have the stomach for (something)
Not have two cents to rub together
Not hear of (something)
Not hold a candle to (someone or something)
Not hold water
Not hurt a flea
Not in so many words
Not in the same league
Not in the same league with (someone or something)
Not just a pretty face
Not know (someone) from Adam
Not know beans about (someone or something)
Not know enough to come in out of the rain
Not know if one is coming or going
Not know one's own strength
Not know the first thing about (someone or something)
Not know the first thing about something
Not know where to turn
Not know whether/if one is coming or going
Not lay a finger/hand on (someone)
Not let (someone) catch you (doing something)
Not lift a finger/hand
Not lift a finger/hand (to help someone)
Not long for this world
Not made of money
Not make head nor tail of (something)
Not miss much
Not move a muscle
Not much of (something)
Not on your life
Not one iota
Not one's cup of tea
Not one's place
Not open one's mouth
Not playing with a full deck
Not see farther than or past the end of one's nose
Not see past/farther than the end of one's nose
Not set foot (somewhere)
Not show one's face
Not sleep a wink
Not so hot
Not stand for (something)
Not take no for an answer
Not tell a (living) soul
Not to be sneezed at
Not touch (someone or something) with a ten-foot pole
Not touch (something) with a ten-foot pole
Not up to scratch/snuff
Not with it
Not worth a dime/cent
Not worth a hill of beans
Not worth a plugged nickel
Not worth mentioning
Not worth one's while
Not worth the trouble
Nothing but (something)
Nothing but skin and bones
Nothing doing
Nothing down
Nothing if not (something)
Nothing of the kind
Nothing short of (something)
Nothing to choose from
Nothing to complain about
Nothing to it
Nothing to sneeze at
Nothing to speak of
Nothing to write home about
Now and then
Now or never
Nowhere near
Null and void
Number cruncher
Number of (things or people)
Number one
Nurse (someone) back to health
Nurse a grudge
Nuts about (someone or something)
Nuts and bolts (of something)
Nutty as a fruitcake
Nuzzle up to (someone or something)
O
OAP
OAU
Occur to (someone)
Ocean(s) of (something)
OD
Odd (something)
Odd man out
Oddball
Odds and ends
Odds are against one
Odor of sanctity
Of age
Of all the nerve
Of all things
Of benefit to (someone)
Of course
Of interest (to someone)
Of late
Of one mind
Of one's own free will/accord
Of the old school
Of the same mind
Of two minds
Off (someone or something) goes
Off and on
Off and running
Off balance
Off base
Off campus
Off duty
Off guard
Off like a shot
Off limits
Off one's back
Off one's chest
Off one's hands
Off one's high horse
Off one's rocker
Off season
Off the air
Off the beam
Off the beaten track
Off the hook
Off the mark
Off the record
Off the subject
Off the top of one's head
Off the track
Off the wagon
Off the wall
Off to a running start
Off to one side
Off-center
Off-color
Off-the-cuff
Offbeat
Offensive weapon
Old boy network
Old flame
Old hand at (doing something)
Old hat
On (someone's) account
On (someone's) back
On (someone's) behalf
On (someone's) coat-tails
On (someone's) doorstep
On (someone's) head
On (someone's) say-so
On (someone's) shoulders
On (something's) last legs
On a diet
On a dime
On a first-name basis (with someone)
On a fool's errand
On a par with
On a shoestring
On a splurge
On a waiting list
On account
On active duty
On again, off again
On all fours
On an even keel
On and off
On and on
On any account
On approval
On behalf of (someone)
On bended knee
On board
On call
On campus
On cloud nine
On condition that
On consignment
On credit
On deck
On duty
On edge
On end
On everybody's lips
On faith
On fire
On foot
On good terms with (someone)
On guard
On hand
On hold
On horseback
On ice
On impulse
On land
On line
On location
On medication
On no account
On occasion
On one's best behavior
On one's chest
On one's coat-tails
On one's feet
On one's guard
On one's heels
On one's high horse
On one's honor
On one's mind
On one's own
On one's own time
On one's person
On one's shoulders
On one's toes
On order
On par with (someone or something)
On pins and needles
On probation
On purpose
On record
On sale
On schedule
On second thought
On shaky ground
On side
On speaking terms with (someone)
On standby
On target
On the air
On the alert (for someone or something)
On the average
On the ball
On the bandwagon
On the beam
On the bench
On the blink
On the block
On the borderline
On the button
On the contrary
On the defensive
On the dole
On the dot
On the double
On the edge of one's seat
On the eve of (something)
On the face of it
On the fence (about something)
On the fritz
On the go
On the heels of (something)
On the horizon
On the horns of a dilemma
On the hot seat
On the hour
On the house
On the job
On the level
On the lookout for (someone or something)
On the loose
On the make
On the market
On the mend
On the money
On the move
On the nose
On the off chance
On the one hand
On the other hand
On the point of (doing something)
On the QT
On the right track
On the road
On the rocks
On the ropes
On the same page
On the same wavelength
On the sly
On the spot
On the spur of the moment
On the strength of (something)
On the take
On the tip of one's tongue
On the trail/track of (someone or something)
On the up and up/on the up-and-up
On the verge of (doing something)
On the wagon
On the warpath
On the way (somewhere)
On the whole
On the wrong track
On thin ice
On time
On tiptoe
On top
On top of (something)
On top of (something/things)
On top of the world
On trial
On vacation
On view
On your marks
On/upon (someone's) head
On/upon one's head
Once and for all
Once in a blue moon
Once in a lifetime
Once in a while
Once or twice
Once upon a time
Once-over
One (for someone)
One after another
One and all
One and only
One and the same
One at a time
One by one
One foot in the grave
One for the (record) books
One for the road
One good turn deserves another
One heck/hell of a (someone or something)
One in a hundred
One in a million
One in a thousand
One in a thousand/hundred/million
One jump/step ahead of (someone or something)
One little bit
One man's meat is another man's poison
One of the boys
One of these days
One of those days
One of those things
One or two
One person's trash is another person's treasure.
One sandwich short of a picnic
One that got away
One thing leads to another
One to a customer
One up on (someone)
One way or another
One's bark is worse than one's bite
One's chickens have come home to roost
One's days are numbered
One's feet are on the ground
One's flesh and blood
One's frame of mind
One's goose is cooked
One's hair stands on end
One's hands are tied
One's lucky number comes up
One's lucky stars
One's money is on (someone)
One's name is mud
One's number is up
One's opposite number
One's stamping grounds
One's tail between one's legs
One-armed bandit
One-night stand
One-track mind
One-two
One-upmanship
Only have eyes for (someone)
Open (someone's) eyes to (something)
Open (something) up
Open a conversation
Open and aboveboard
Open book
Open fire on (someone)
Open for business
Open one's heart to (someone)
Open Pandora's box
Open season on (someone or something)
Open secret
Open the door to (something)
Open to (something)
Open up a can of worms
Open up on (someone or something)
Open up to (someone)
Open with (something)
Open-and-shut case
Opening gambit
Opposite sex
OR
Or else
Or words to that effect
Order (someone) around/about
Order of the day
Other fish to fry
Other side of the tracks
Other way round
Ounce of prevention is worth a pound of cure
Out and about
Out cold
Out for blood
Out from under (someone or something)
Out front
Out in force
Out in left field
Out in the cold
Out like a light
Out of (something)
Out of a clear blue sky
Out of all proportion
Out of bounds
Out of breath
Out of character
Out of circulation
Out of commission
Out of condition
Out of consideration for (someone or something)
Out of control
Out of courtesy
Out of earshot
Out of favor (with someone)
Out of gas
Out of hand
Out of keeping with (something)
Out of kilter
Out of line
Out of luck
Out of necessity
Out of one's element
Out of one's hair
Out of one's league
Out of one's mind/head/senses
Out of one's shell
Out of order
Out of place
Out of practice
Out of print
Out of proportion
Out of reach
Out of season
Out of service
Out of shape
Out of sight
Out of sight, out of mind.
Out of sorts
Out of spite
Out of step
Out of stock
Out of style/fashion
Out of the blue
Out of the corner of one's eye
Out of the frying pan and into the fire
Out of the hole
Out of the loop
Out of the mouths of babes
Out of the ordinary
Out of the question
Out of the red
Out of the running
Out of the way
Out of the woods
Out of thin air
Out of this world
Out of touch with (someone or something)
Out of town
Out of tune
Out of turn
Out of whack
Out of work
Out on bail
Out on one's ear
Out on parole
Out on patrol
Out on the town
Out to lunch
Out-and-out (something)
Out-of-date
Out-of-pocket expenses
Outgrow (something)
Outguess (someone)
Outside of (something)
Outside the box
Outsource (something)
Over (someone's) head
Over a barrel
Over and done with
Over and over
Over one's dead body
Over one's head
Over the hill
Over the hump
Over the long run/haul
Over the short run/haul
Over the top
Over the worst
Over with
Overnight (something)
Owing to (someone or something)
Own up to (something)
P
PA
Packed in like sardines
Pad the bill
Paddle one's own canoe
Pain in the neck
Paint oneself into a corner
Paint the town red
Pale/blue/green around the gills
Palm off (something)
Paper tiger
Par for the course
Pass the buck
Pass the hat
Pass the torch/baton to someone
Pass through (someone's) mind
Pass with flying colors
Pat on the back
Patch up a relationship
Pay (someone or something) no mind
Pay (someone) a back-handed/left-handed compliment
Pay a king's ransom (for something)
Pay an arm and a leg (for something)
Pay as you go
Pay in advance
Pay lip service to (someone or something)
Pay off
Pay off (someone)
Pay off (something)
Pay off a debt/loan
Pay one's debt (to society)
Pay one's own way
Pay the piper
Pay through the nose for (something)
Pay up
Payoff
PC
PE
Pecking order
Peeping Tom
Penalty clause
Pennies from heaven
Penny for one's thoughts
Penny saved is a penny earned
Penny-wise and pound foolish
Per head
Perfect couple
PhD
Pick holes in an argument
Pick the brains of (someone)
Pick up the tab/check
Pie in the sky
Piece of cake
Piece/slice of the action
Piggy bank
Piggyback
Pinch pennies
Pink slip
Pit one's wits against (someone)
Pitch-black
Play ball (with someone)
Play by ear
Play by the rules
Play cat and mouse with (someone)
Play chicken
Play devil's advocate
Play fair
Play footsie (with someone)
Play hardball (with someone)
Play hooky
Play into (someone's) hands
Play it by ear
Play one's ace
Play one's cards close to one's chest
Play one's cards right
Play possum
Play the market
Plea bargain
PLO
Plug a product
PM
Poetic justice
Point the finger (of blame) at (someone)
Poke one's nose into (something)
Poker face
Polish the apple
Pony up
Pop the question
Post mortem
Pot calling the kettle black
Pour money down the drain
Pour one's heart out (to someone)
POW
Powder one's nose
Power of attorney
PR
Preferred customer
Preliminary hearing
Press the flesh
Prick up one's ears
Prima facie
Privy to something
PS
PTA
PTO
Publish or perish
Pull (someone's) leg
Pull (someone's) tooth out
Pull (something) off
Pull (something) out of a hat
Pull one's (own) weight
Pull one's hair out
Pull the wool over (someone's) eyes
Pull through
Pull up one's socks
Pump iron
Punitive damages
Puppy love
Put (lay) one's cards on the table
Put (someone or something) out of one's head/mind
Put (someone or something) out to pasture
Put (someone's) eye out
Put (someone's) nose out of joint
Put (someone) on hold
Put (someone) through
Put (something) down in black and white
Put (something) in mothballs
Put (something) on hold
Put a bug in (someone's) ear
Put all one's eggs in one basket
Put flesh on (something)
Put hair on one's chest
Put ideas into (someone's) head
Put in one's oar
Put in one's two cents (worth)
Put on a brave face
Put on one's thinking cap
Put on the dog
Put on the feed bag
Put one's back into (something)
Put one's best foot forward
Put one's cards on the table
Put one's face on
Put one's finger on (something)
Put one's foot down (about something)
Put one's foot in one's mouth
Put one's hand to the plow
Put one's hands on (something)
Put one's head in a noose
Put one's head in the lion's mouth
Put one's head on the block for (someone or something)
Put one's heads together
Put one's mind to (something)
Put one's money where one's mouth is
Put one's nose to the grindstone
Put one's shoulder to the wheel
Put one's thinking cap on
Put one's toe in the water
Put some teeth into (something)
Put the bite on (someone)
Put the cart before the horse
Put the cat among the pigeons
Put two and two together
Put weight on
Put words into (someone's) mouth
Put/lay the finger on (someone)
Putty in (someone's) hands
Q
Quake in one's boots
Queer as a three-dollar bill
Quick and dirty
Quick as a flash
Quick as a wink
Quick as greased lightning
Quick buck
Quick on the draw
Quick on the trigger
Quick on the uptake
Quick one
Quid pro quo
Quiet as a mouse
Quite a (something)
Quite a bit
Quite a few
Quite a lot
Quite a number
Quote a price
R
Race against time
Rack one's brain
Racked with pain
Rail at (someone) about (something)
Rain (something) out
Rain cats and dogs
Rain check
Rain on (someone's) parade
Rain or shine
Raise a fuss
Raise a hand
Raise a hand against (someone or something)
Raise a stink about (something)
Raise an objection (to/about someone or something)
Raise an objection to (someone or something)
Raise Cain
Raise eyebrows
Raise havoc with (someone or something)
Raise hell with (someone or something)
Raise its (ugly) head
Raise one's sights
Raise one's voice to (someone)
Raise the ante
Raise/up the ante
Raise/wave a white flag
Rake (someone) over the coals
Rake (something) off
Rake in the money
Rake off (some money)
Rally around someone or something
Ram (something) down (someone's) throat
Ramble on about (someone or something)
Rank and file
Rant (at someone) about (someone or something)
Rant and rave about (someone or something)
Rap (someone's) knuckles
Rap with (someone)
Rare bird
Rarin' to go
Rat on (someone)
Rat out on (someone)
Rat race
Rate with (someone)
Rattle (something) off
Ravished with delight
Raw deal
RCMP
Reach a compromise
Reach a stalemate
Reach an agreement
Reach an impasse
Reach first base
Reach for the sky
Reach one's stride
Read (someone's) lips
Read (someone's) mind
Read (someone) his or her rights
Read (someone) like an open book
Read (something) into (something)
Read (something) over
Read (something) through
Read between the lines
Read out loud
Read the handwriting on the wall
Read the riot act (to someone)
Read to oneself
Read up on (someone or something)
Ready, willing, and able
Real McCoy
Real thing
Reality of a situation
Rear its ugly head
Receive (someone) with open arms
Reckon with (someone or something)
Recognize (someone or something) for what it/he/she is
Reconcile oneself to (something)
Red cent
Red flag
Red herring
Red in the face
Red ink
Red tape
Red-carpet treatment
Red-eye
Red-hot
Red-letter day
Reduced to (something)
Reel off (something)
Refill a prescription
Regain one's composure
Regain one's feet
Regardless of (something)
Regular as clockwork
Regular guy
Relative to (someone or something)
Reliance on (someone or something)
Religious about (doing something)
Reluctant to (do something)
Reputed to be/do something
Resign oneself to something
Resonate with (someone)
Responsible party
Rest assured
Rest in peace
Rest on one's laurels
Rest on one's oars
Result in (something)
Return the compliment
Return the favor
Rev (something) up
Rhyme or reason
Rich in (something)
Ride (something) out
Ride herd on (someone)
Ride off in all directions
Ride on (someone's) coattails
Ride roughshod over (someone or something)
Ride the gravy train
Riding for a fall
Riding high
Right and left
Right as rain
Right at (a specific time/place)
Right away
Right down/up (someone's) alley
Right hand does not know what the left hand is doing
Right off the bat
Right on
Right on time
Right out
Right side up
Right under one's nose
Ring a bell
Ring down the curtain on (something)
Ring hollow
Ring in the New Year
Ring true
Ring up (someone)
Ring up (something)
RIP
Rip into (someone or something)
Rip off (someone or something)
Ripe old age
Ripple of excitement
Ripple of protest
Rise and shine!
Rise to the bait
Rise to the occasion
Risk of rain/showers/thunderstorms
Risk one's neck (to do something)
Rivet (someone's) attention
Road hog
Rob Peter to pay Paul
Rob the cradle
Rock the boat
Rock-bottom offer
Roll around
Roll back (a price)
Roll in
Roll out the red carpet