8
When you shit in someones ear and then fuck the shit.
Dude, I went to a gay bar and I think I was monster mashed.
by Fernando November 16, 2004
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9
Masturbating. Flicking off. Jerkin' off. Fucking yourself. Whatever you call it
After seeing that hot girl I did the Monster Mash
by Alex Smith March 25, 2005
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