smart aleck(redirected from ALECS)
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One who makes jokes and uses sarcasm in an attempt to seem witty, but instead is deemed annoying. Also seen as "smart alec." I'd had enough of that smart alec's wisecracks, so I left the party early.
An impudent or obnoxiously self-assertive individual, a wise guy, as in New teachers often have a hard time coping with the smart alecks in their classes. This expression, dating from the mid-1800s, probably alluded to a person of this description who was named Alec or Alexander, but his identity has been lost.