mud-tracking

When you fuck a girl, or man, in the anus, take out your poo covered dick, and wipe it down her spine, leaving a brown line.

Hey, tell your mom to eat more meat and less vegatables. I was mud-tracking her the other day and the shit on her back was green.

by LuchadorMann December 16, 2006

Mudtrucking

The act where one shits onto one's hand and then uses said hand to masturbate themselves or a third party.

Darren: What's that smell?
Michael: I think Ben is mudtrucking in his room

by ghost64 November 9, 2014