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90.
I. The man and woman (or man and man) engage in anal sex
II. The male continues by inserting his throbbing cock into the male/females mouth, hense leaving fecal matter in and around her/his mouth
III. Finally, they share a romantic kiss spreading the fecal matter from one partners mouth to the others
1. My girlfriend loves to eat shit so I gave her a dirty sanchez
by mfdoom August 02, 2005
 
1.
You guys are wrong, its when a man and a woman engage in anal sex, then the man takes his penis and rubs it on the girls upper lip leaving a moustache.
After having anal sex, the man gave the woman a dirty sanchez.
by H. Carl August 20, 2003
 
2.
NO, a Dirty Sanchez is performed when a male fingers a female's ass and wipes the reminants on the female's upper lip. What you referred to below, when a male inserts his penis in a female's ass then transfers the fecal matter from his penis to the female's upper lip is the Dirty Rodruigez, the first cousin of the Dirty Sanchez. Don't feel bad though, they are commonly confused.
The man's index finger was smelly after administering a dirty sanchez.
by UnclePete123 February 27, 2006
 
3.
after having anal sex, the man pulls out his penis and wipes it across his partners lip, forming an authentic looking mexican moustache.
he gave her a dirty sanchez and she never had anal sex again.
by frappe August 04, 2005
 
4.
It does not matter how you do it. It's a Fecal Mustache.
Jane likes to give head, but Dick likes to give a Dirty Sanchez.
by S.D.S March 20, 2006
 
5.
The term 'dirty sanchez' originated in the porn industry, particularly films involving ass-to-mouth (atm) action. It describes the (originally unintentional, i.e. blooper) act of leaving a shit moustache on a partner's face by taking your cock out of her ass and putting it in her mouth without wiping it off first. The result is that as the dick is thrust between the lips, shit is scraped off and comes to rest on her upper lip in a moustache configuration.

Anyone who thinks it involves the deliberate wiping of shit with fingers on a partner's face is a know-nothing fucktard.
Please disregard the numerous fucktard definitions of 'dirty sanchez' that were previously recorded.
by Figleaf23 October 05, 2007
 
6.
NO, a Dirty Sanchez is performed when a male fingers a female's ass and wipes the reminants on the female's upper lip. What you referred to below, when a male inserts his penis in a female's ass then transfers the fecal matter from his penis to the female's upper lip is the Dirty Rodruigez, the first cousin of the Dirty Sanchez. Don't feel bad though, they are commonly confused.

The man's index finger was smelly after administering a dirty sanchez.
by nickel poo turnip September 27, 2006
 
7.
The act of engaging in the doggy style position then fingering the female's anus while in that position and smearing a residue of her own shit accross her upper lip forming a mustache.
I would never kiss my girl right after a dirty sanchez!!!
by lanyc July 30, 2006