more fun than a barrel of monkeys
- very funny, fun
The children love their teacher because he is more fun than a barrel of monkeys.
as quiet as a mouse
- very quiet, shy
I was as quiet as a mouse when I left my house early this morning.
- someone who prefers to spend time alone and has few friends
The boy was a lone wolf and spent most of his time alone.
get (someone`s) goat
- to annoy someone
My friend is always complaining about the way that I do things which gets my goat.
in a pig`s eye
- unlikely, not so, never
Never in a pig`s eye will my friend be able to save enough money to go to Mexico for the winter.