1. smart aleck - Noun
2. smart aleck - Adjective
an upstart who makes conceited, sardonic, insolent comments
Source: WordNetsmart-aleck
When I seemed to be irritable or sad, my father would quote the learned Dr. Knight, and then say, 'Just go to sleep.' Like all smart aleck kids, I thought the advice was silly. But as I've grown older, I've realized just how smart Knight was. Ben Stein
I've never progressed very far from my days as a smart aleck in middle school. Carl Hiaasen
Matthew's word balloons and font style are scratchy and uneven, probably to represent a hoarse, cawing voice, and perhaps as an indicator of his crude, smart-aleck personality. Source: Internet
You know, “We’re the radical network and we don’t play by the rules, and we have these smart aleck characters, and this isn’t a smart aleck character.” Source: Internet
In the earliest episodes, Blanc had used a much higher pitch to the point of portraying Barney as a smart-aleck. Source: Internet