Streaks on a man's sheets or comforter left by the gooey secretions of a female's vaginal lips from the previous night's sexual encounter.
by kikdcat March 20, 2016
Accidentally snorted two lines of cocaine at once. Derived from railway lines / rail roads / rail track
by Hashtagger January 01, 2011
by Darren Blatt August 26, 2006
The SS is faster than the GT in a straight line, but, a GT with Track Pack is quicker through the twisties.
by Mike Comanche May 05, 2009
by mkelly November 02, 2006
by JawZ251 August 22, 2008
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 13, 2006