wise guy 
/ˈwaɪzˌgaɪ/ noun
plural ∼ guys /ˈwaɪzˌgaɪ/ noun [count] informal 1 chiefly US : a person who says or does things that are funny but also annoying or somewhat rude
▪ Quit being a wise guy. ▪ No more wise-guy remarks, got it? 2 usually wise·guy US : someone who is part of a secret organized group of criminals : mobster
▪ a movie about two wiseguys
▪ Quit being a wise guy. ▪ No more wise-guy remarks, got it?
▪ a movie about two wiseguys
