smart alec
聰明才智過人的人,常常自大或愛顯擺
口語·略帶貶義
英文釋義
someone who is excessively clever or confident, often in a sarcastic or irritating way
例句
He's such a smart alec, always correcting everyone in meetings.
典故來源
源自19世紀(jì)美國,'Alec'是Alexander的昵稱,指自以為聰明、愛炫耀的人。