Eat like a horse
Sick as a dog
Let the cat out of the bag
Smell a rat
Rat on someone
Monkey business
Chase the dragon
Pull a rabbit out of a hat
A fish out of water
Monkey suit
Lion's share
Drink like a fish
Snake in the grass
Butterflies in one's stomach
Like moths to a flame
Bear hug
Turn turtle
Knee-high to a grasshopper
Go ape
Donkey work
Shed crocodile tears /
Cry crocodile tears /
Weep crocodile tears
White elephant
Rat race

Wild goose chase
Watch someone like a hawk
Cock of the walk
As the crow flies
No spring chicken
Cold turkey
Talk turkey
Stool pigeon
Cock and bull story
As scarce as hen's teeth / Scarcer than hen's teeth
Sitting duck
Dead duck
As a duck takes to water /Like a duck takes to water
Night owl
Swan song
A little bird told me
Eat like a bird
Clip someone's wings
In fine feather

Have one's finger in too many pies
Bring home the bacon
ne's eyes are bigger
than one's stomach
Soup up something /Soup something up
Bread and butter
In apple-pie order
One's cup of tea
Cry over spilt milk
Use one's noodle
Salt of the earth
Ride the gravy train

Apple of one's eye
Carrot-top
Full of beans
Apples and oranges
Cool as a cucumber
Forbidden fruit
Couch potato
Hot potato
Sour grapes
Go bananas
A lemon

Bring the house down /Bring down the house
Eat someone out of house and home
On the house
Safe as houses
Make oneself at home
Go through the roof
A roof over one's head
Raise the roof
Everything but the kitchen sink
Hit the ceiling / Hit the roof
Be home and dry
Till the cows come home

Black and blue
In black and white
In the red
In the black
Have green fingers /Have a green thumb
Blue blood
Blue collar
White collar
White lie
Wave the white flag /Raise the white flag
Gray matter
Pink slip
Be in the pink
Green stuff
Red-letter day
Out of the blue /Out of a clear blue sky
Red tape
Roll out the red carpet
With flying colors
Sail under false colors
Show one's true colors /Show oneself in one's true colors
Riot of color
Yellow-bellied / Have a yellow belly
Lend color to / Give color to
Green with envy
Golden opportunity
Catch someone red-handed /Catch red-handed
Paint the town red
Silver screen

Labor of love
Cupboard love
The love of one's life
Love someone to death
Love nest
Tie the knot
Lead to the altar
Not for love or money /Not for love nor money
No love lost
Puppy love / Calf love
Fall out of love

All in one breath
One of these days
All in one piece
Back to square one
That makes two of us
Lesser of two evils
Have two left feet
A third wheel / A fifth wheel
Get the third degree
A three-ring circus
On all fours
Four corners of the earth

At this stage of the game
Back the wrong horse /Bet on the wrong horse
Let someone off the hook /Get off the hook
Call the shots
Jump the gun
Neck and neck
Not in the same league as /Not in the same league with
On the ropes
Paddle one's own canoe
Play fair
Pump iron
Saved by the bell
Throw in the towel / Throw in the sponge
On the run
Toe the line / Toe the mark
Run an errand
Win by a nose
Take a dive
Eat and run

Fair-weather friend
Fan the breeze / Shoot the breeze
Steal somebody's thunder
Have a face like thunder / Look like thunder
Save something for a rainy day
Take a rain check / Get a rain check
Chasing rainbows
Weather the storm
Come rain or shine / Rain or shine
Calm before the storm /Lull before the storm
See which way the wind is blowing
Straw in the wind
Run like the wind
Swift as the wind / Swift as thought
Gone with the wind
Rise and shine
Blow hot and cold
Take a shine to someone or something
In a fog

Word of mouth
Foam at the mouth
Button one's lip /Button up one's lip
Lick one's lips
Sink one's teeth into /Get one's teeth into
Put one's money where one's mouth is
Melt in one's mouth
Have a big mouth
Live from hand to mouth
Show one's teeth / Bare one's teeth
Cut your teeth in something /Cut your teeth on something
Lie in one's teeth /Lie through one's teeth
With one's tail between one's legs
Have one foot in the grave
Feel like a million dollars /Look like a million dollar
At a premium
At all costs
Balance the accounts
Make a fast buck / Make a quick buck
See the color of someone's money
For a song
One's heart misses a beat /One's heart skips a beat
One's heart stands still
Lose one's heart to someone
With a heavy heart