1 definition by RORYKNIGHT

poo masty

The act of masturbation while excreting feces so that as the semen is emitted from the penis in an orgasm a poo is shot out of the anus at the same time, creating intense euphoria.

Ohh man I had the best poo masty 10 mins ago, there is semen on the floor

by RORYKNIGHT August 22, 2008