when a man or a women shits hot diahrrea, then rubs their ass in it and stamps shit prints on objects or even people as a practical joke.
Last night, we pulled the best prank on Jake. Kyle poo stamped his bed, couch, and his sink hahaha so gross!
It's the act of placing one's naked ass onto someone's resting hand after using the bathroom and not wiping the behind.
that's disgusting!!! Mark gave me a POO STAMP while i was talking to Amber , now my hand smells like shit!!!.