The act of accidental thrusting of the backside booty of somebody, usually happens in the act of moving, or trying to escape something or someone. Can only happen between two men.
amanda: "WTF. Did you see that? Jonathon just grinded on Josue when i tried to hit him."
Joey: "haha. ...anus burn"
Joey: "haha. ...anus burn"
by manduhmanduh October 11, 2008
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