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when someone gets smacked in the face with poop.
i gave bryson a large poopsmack.
by Luke Mangini March 31, 2005
When someone you are not attracted or don't even know try's to or does kiss you.
Ex: Yuck I just got poopsmacked from mr. Fugly right over there. Poopsmack.
by Tamtamlee January 10, 2014