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 21, 2006
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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 28, 2006
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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 5, 2005
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It is when you rub shit across your upper lip.
by Tootie92 December 26, 2009
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A Dirty Sanchez is a sexual situation where a man is laying some pipe doggy-style, and while in the midst of sex he inserts his finger in the womans starfish and then smears his finger across her upper lip, giving her a thin shit moustache. This is the Dirty Sanchez.
That bitch was so skanky, she didnt even mind that I gave her a dirty snachez!
by BryanO July 17, 2003
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The preferred nickname of Oswaldo Sanchez, goalkeeper for the Mexican national soccer team.
"I was there when DaMarcus Beasley scored that beautiful goal on Dirty Sanchez and the US went on to beat Mexico 2-0 in Columbus and qualify for the World Cup."

Sam's Army: "DIR-TY SAN-CHEZ" (clap-clap, clap-clap-clap)
by C 2 Shine N C January 3, 2007
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While having sex, the man puts his finger in the woman's asshole. He pulls his finger out an wipes it on her upper lip giving her a shit moustache.
by Tommy K. June 11, 2005
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