The teacher asked the student if she had ants in her pants?
Jittery, excited
The boy had butterflies in his stomach before he went on stage.
Nervous
Last night it was raining cats and dogs.
Raining a lot
The fan told the singer to break a leg.
Good luck
It was time to go back to square one.
Go back to the beginning
The girl failed her test and was feeling blue.
Sad, upset
Do not give me the cold shoulder.
Ignore
The boxer was as fit as a fiddle.
In good shape
It was time to hit the sack.
Go to bed
That story cracked me up.
Made me laugh
The boys eyes were bigger than his stomach.
Took more food than he could eat
That test was a piece of cake.
Easy
Did you get out on the wrong side of the bed this morning?
Cranky
Do not get cold feet before the play starts.
Get nervous
The good news came out of the blue.
Came out of no where
Please give your mom a hand in the kitchen.
Help out
You hit the nail on the head with your answer.
Got it correct
The dog days of summer are starting to wear me out.
Hot days
The doctor was on duty around the clock.
All day, every day
The man and the woman tied the knot.
Got married
The boy was in a pickle.
In trouble
My dad has a green thumb.
Good at growing things
Once in a blue moon my sister cleans her room.
Every so often
Time flies when you are having fun.
Time goes by fast
The costume was very over the top.
Excessive