wise guy
noun
RareNot in standard dictionaries
1
One who is insolent or flippant; one who makes jokes or perpetrates pranks.
2
A knowledgeable or successful sports bettor.
3
A member of the Mafia; a mobster.
4
A hipster.
5
An Italian-American man.
Thesaurus
#derogatory#informal#offensive#slang