fool around
phrasal verbfool around
- (British English also fool about)to waste time instead of doing something that you should be doing
闲耍；虚度光阴 - fool around (with somebody) to have a sexual relationship with another person’s partner; to have a sexual relationship with somebody who is not your partner
（和某人）乱搞男女关系 - She's been fooling around with a married man.
她一直和一个有妇之夫鬼混。
- She's been fooling around with a married man.