wise guy

Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++wise guy → wise guy at wise1(3) an annoying person who thinks they know more than they really do

wise guy

BrE

/ˈwaɪz ɡaɪ/

🔊

NAmE

/ˈwaɪz ɡaɪ/

🔊

noun

(

informal,

disapproving,

especially NAmE

)

a person who speaks or behaves as if they know more than other people 自以为无所不知的人；万事通

SYN

know-all

(

US,

slang

)

a member of the Mafia 黑手党成员