Top Definition
A tardnuckle is a hybrid of someone who acts retarded, and a knucklehead. Usually someone who enjoys playing retarded for fun and looks like a vacuous goon doing so.
Mike "I'm totally going to act full retard at the party. "

John "You would because you're such a tardnuckle."
by A Moses August 17, 2009
5 Words related to Tardnuckle

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