What does "A piece of cake" mean ?
That something is easy
What does "To let the cat out of the bag" mean?
To accidentally reveal a secret
When pigs fly!
Something that is never going to happen
Once in a blue moon
Very rarely
Like a bull in a china shop
behaving recklessly and clumsily in a situation where one is likely to cause damage
To be barking up the wrong tree
be pursuing a mistaken or misguided line of thought or course of action
To cry over spilt milk
o get upset or regretful about something that has already happened and cannot be changed
To be cool as a cucumber
to be very calm, composed, and unflappable, especially in a stressful or challenging situation
