It's raining cats and dogs
That was a piece of cake.
That was easy.
I don't feel good.
I have butterflies in my stomach.
I'm nervous.
Break a leg
Good Luck!
Don't spill the beans.
Don't tell my secret.
When pigs fly.
That is not going to happen.
The ship has sailed
You missed your chance
To Lighten Up
To cheer up, to calm down
I'm going to hit the sack.
That costs an arm and a leg.
Doing very little, being very lazy
Call it a day
To end something, stop doing something
On pins and needles
Nervous
To find a needle in a haystack
Something that is very hard to find
Hang in there
Don't give up
Blow off steam or let off steam
to do or say something to get rid of strong emotions
We don't see eye to eye.
We don't agree.
Go back to the drawing board
The last straw.
The last chance