Top Definition
when someone is beyond the capability of being called a skank therefore leaving the only possible insult being "dirthorse"

Wow, i never realized Amanda is such a fuckin dirthorse after she got a train ran on her that lasted four hours.

by wahhwickawahwahh July 15, 2008
5 Words related to Dirthorse
An insult used when someone does something so ridiculous and/or unnecissarily painful that normal insults are inadequate.

Hey, nobody wants to ride a dirty horse.
"Dude, yesterday Tom bit me in the wenis"
"Did he break skin?"
"Yea, he's such a dirt horse"
by AKAthecheesegrater April 15, 2010

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