idioms

breed like rabbits (have many children in a short period of time) She is married to John, and they breed like rabbits. Some couples breed like rabbits just after marriage.    – English Vocabulary

black sheep  informal (a person who is regarded as a disgrace by his family or group) Ben is the black sheep of the family because he is always in trouble with the police. There is a black sheep in every flock. so – English Vocabulary  

bitten by the same bug  informal (have the same interest or hobby) My brothers and I were bitten by the same bug. We both play football.    – English Vocabulary

bitten by the bug  informal (have a sudden strong interest in something) I was never interested in music before, but now I have been bitten by the bug. John was bitten by the travel bug when he was 18, which is why he is always abroad.  – English Vocabulary

    bitch and moan  rude (complain) Stop bitching and moaning about your job; if you don’t like it, look for another one. She is always bitching and moaning about how windy this city is.   – English Vocabulary