0 someone who tries to appear smart or who answers questions in a funny way that annoys other people
1 an annoying person who thinks that other people are less intelligent:
That kid’s a real smart-aleck.
The last thing we want is what should be a serious debate turning into a smart-aleck contest or an academic exercise.
Large firms gain a decided advantage from delayed payments: the transgressors are smart-aleck company treasurers who fully understand the importance of free balances and increased funds.
He established himself in radio, usually playing smart-aleck kids.
A string of smart-aleck statements by the judge were aimed at defense lawyers.....
As the chorus sings each of the questions and responses, the lead singer interjects a smart-aleck answer before joining with them.
He is a smart-aleck teenager with a lightning-fast wit and a sarcastic and deadpan sense of humor.
He is a smart-aleck with a fast wit and a deadpan sense of humor.