In order to perform a dirty matt you need at least 4 homosexual men, one of the participants names must be matt. Matt will be the reciever. The four men penetrate Matt in any hole they can find, then all of the participants ejaculate in a styrofoam cup and watch matt drink it.
Me and my friends went over to matts last friday, we were bored so we did a dirty matt.
by chodesahoy March 05, 2007