Food
Cool as a cucumber
To be very calm under stress
Pig out
To eat a lot
A gray area
Something unclear
Cross your fingers
For good luck
Add fuel to the fire
To add more to an existing problem
The icing on the cake
Something additional that turns good into great
Hold your horses
Wait a minute
Feeling blue
Feeling sad
I’m all ears
You have my full attention
Call it a day
Time to quit
Piece of cake
Something very easy
Cat got your tongue?
Why aren’t you talking?
Seeing red
Feeling very angry
Get cold feet
Be nervous
Class clown
A student who acts silly at school for attention and laughs
You’re in hot water
You’re in trouble
Fish out of water
Being somewhere you don’t belong
Out of the blue
With no warning
It cost an arm and a leg
It was expensive
We’re in the same the boat
We’re in the same situation
Spill the beans
Give away the secret
Night owl
Someone who stays up late
Black and blue
Bruised
Speak your mind
Say what you really feel
Wake up on the wrong side of the bed
Wake up in a bad mood