I lost my head.
I got angry or upset.
When pigs fly
not likely to happen
Break a leg
good luck, hope they perform well
It's raining cats and dogs.
It is raining a great deal.
I'm on cloud 9.
I am very happy.
killing two birds with one stone
getting two things done with one action
let the cat out of the bag
told the secret
walking on eggshells
trying really hard not to upset someone
My car is a lemon.
The car is no good.
a coach potato
a lazy person
My lips are sealed.
I won't tell.
like a fish out of water
very uncomfortable
It's a piece of cake.
It's very easy.
Beating about the bush
not getting to the point
Blind as a bat
can't see very well
has a heart of gold
is very kind
