The act two people pooping in the same toilet bowl at the same time. Where one person is sitting in a traditional fashion, while the other party sitting on the first persons lap with his anus positioned between the original party's legs.

If the poop goes through the legs without touching the legs, this can be called a poop-dunk. If the poop hits the party's legs, the bottom party has the right to rub feces on the top party. If, under any circumstances, the top party poops on the bottom parties wiener, the bottom party has the right to redeposit said poop into the anus of the top party via anal penetration.

when you're hungover as shit after a spending a night drunk as a skunk