- (especially North American English, informal, disapproving)
a person who speaks or behaves as if they know more than other people synonym know-all自以为无所不知的人;万事通 OK, wise guy, what do we do now? 好了,万事通,我们现在该怎么做呢?
- (US English, slang)
a member of the Mafia 黑手党成员