When someone inserts a toy truck into their partner's anus, then removes it and then rolls it up their back, leaving a dirty trail of tire marks along their spine.
by ChaoticallyAngelic April 29, 2014

When A girl attempts to grind on a man, but while grinding rubs shit on his body like a trail from her unwhiped ass.
Hey whats that on your hip?
Oh man, hannuh gave me an old fashioned dirty dorshimer trail.
You lucky bastard!
Oh man, hannuh gave me an old fashioned dirty dorshimer trail.
You lucky bastard!
by Nick Dorshimer October 05, 2007

When a male ejaculates into a female/male's ass, then they proceed to drag their sphincter across the ground (like a dog with ass worms) leaving behind a trail of shit and cum.
by Tow Truck Bobby July 03, 2017

Lick a man's ass and Balls,while Giving him a reach around and catching the sperm with your free hand.
One must lick the man's ass,taint,and balls while Jacking him off at the same time. Works best when the "Licker" is sitting and the man is standing. This provides the best results. MUST catch the sperm in order to be a True "Dirty Oregon Trail".
by The Dirty Gee's September 18, 2012
