Top Definition
A Sweaty McHenry is when you take a pair of underwear caked with wicked swamp-ass, and jam it in a guys mouth until it becomes caked in vomit as well.
Guy #1: Hey, do you know what a Sweaty McHenry is?
Guy #2: No, what is it?
Guy #1: Sit down, close your eyes, and open your mouth...
by Googlebumblefish August 24, 2009
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