As easy as ABC
What is very easy / simple
Get a kick out of it
What is really enjoy/like something
Mumbo jumbo
What is nonsense
Cry crocodile tears
What is to pretending to be upset?
When pigs fly
What is To say something is impossible?
In hot water
What is to be in trouble
Miss the boat
What is to miss your chance
It cost an arm and a leg
What is it is very expensive?
Make a mountain out of a molehill
What is Make something unimportant into a big deal?
Slipped my mind
What is to forget?
Crack a book
What is to open up a book and study.
Give it a shot
What is try to do something
Get cold feet
What is to be very nervous
Hold your horses
What is to wait a minute?
Fish out of water
What is being somewhere you don't belong?
Cool as a cucumber
What is to be very calm under stress
Get your act together
What is to behave
Piece of cake
What is easy
Doggy bag
What is a bag to take home leftovers from a restaurant?
Pig out
What is to eat a lot?
Down to the wire
What is at the last minute
Have second thoughts
What is having doubts about something
Giving the cold shoulder
What is to ignore someone?
Let the cat out of the bag
What is to tell a secret?
Busy as a bee
What is to be very active and working hard at something?