dirty zorro 

After fucking a girl in her ass. you remove your shit covered dick and write your two initials on either side of her butt cheeks.

"I pulled out of that chicks ass, and gave her a dirty zorro. Afterward I bent her over and she spelled B.O.P."

dirty zorro by Charger Brent October 3, 2006

Dirty Zorro 

Like a "Dirty Sanchez", but involving anal sex... You whip out your cock and run around to her face and in a flourish indicative of the masked man himself, cross hr face with a "dirty Z" across her face....

"Do you surrender?"
"Never! But I may scream..."
"I understand... You just got a dirty Zorro...!"

Dirty Zorro by Nordlaw November 27, 2013