Top Definition
Is a person who no matter the situation talks shit. A smack talker will never admit fault or reverse their comments because of course a smack talker knows everything about everything.
While watching football at the pub I had to sit next to this smack talker speaking about the ruling in the game. Of course he was wrong, but blamed it on the referees. What an ass.

by Crazycurly October 01, 2007
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