Can you guess the meaning of the underlined expressions?
1.I'm sorry to be sush (a wet blanket),but I'm afraid I have to go home now.
2.Paul was such a slow worker at first that we almost fired him,but he proved to be (a late bloomer)
3.DO you know why Jack has been promoted?He is the bigggest(apple polisher)in the company!
4.He seems never to know what tiredness is,and he's really (an eager beaver)
5,I used to be a typical (mall rat) hanghanging around watching the crowds.But now I join the football club,and I have no time