Animal Idioms
It's raining cats and dogs
It's raining very hard
Eat like a horse
Eat a lot
Under the weather
Sick
A piece of cake
Easy
Cold feet
Nervous
Cat nap
Short nap
Eat like a bird
Eat very little
Hit the hay
Go to bed
In a pickle
In trouble
Costs an arm and a leg
Something is expensive
Pig out
Eat a lot
When pigs fly
Something is impossible
On cloud nine
Very happy
Cool as a cucumber
Very calm
Up in arms
Angry
Let the cat out of the bag
Tell a secret
Snail's pace
Very slow
Over the moon
Very happy
Spill the beans
Tell a secret
Break a leg
Wish someone good luck
Hold your horses
Wait a minute
Cry crocodile tears
Pretend to be sad
Once in a blue moon
Happens rarely
Go bananas
Go crazy
Twist someone's arm
Make someone do something