An act characterized by the fingering of the ass and the giving of a "thin shit moustache." Not to be confused with the dirty rodruigez.
I was bangin' her ass and then I decided it would be a great idea to give her a dirty sanchez.
by dirty_bird November 21, 2006
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Dirty Sánchez describes the practice, in which the active partner, immediately following ejaculation, inserts the finger into the anus of the passive partner and then smears a mixture of semen and feces under the nose of the passive partner. Eventually, the finger is then licked off by both partners. The naming was chosen, because this was to evoke the impression of a "Mexican moustache."

I gave her a dirty sanchez when I was through.
by Wikipedia83 October 3, 2006
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it has nothing to do with penis's or lips or doodie, it is simply a dirty mexican.
Dude, Paco is one dirty sanchez. you know, the nigga that mows your lawn.
by lord farkwad May 3, 2008
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When a man and a women engage in anal sex and the man pulls out his dirty brown crayon and draws the women a ‘poostatch’.
I gave the girl I met at San Chez tapas in GR, a Dirty Sanchez and she licked it off.
by Numman March 9, 2019
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Former starting quarterback of the NFL team New York Jets
What is mark Sanchez' nickname- Dirty Sanchez
by Tj will December 20, 2017
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Where a dude plugs up a girls(or dude, ain't gonna be rude) ass with his dick and takes it out, puts it on the upper lip(below nose) and leaves a shit-stash.
Friend:Hey Stef! What did you do last night?
Stef: I got a fucking Dirty Sanchez.
Friend:That's just nasty.
by Bettlejuice February 3, 2017
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when anyone male or female stick there finger up his or her ass and rubs it along someones mustache leaving a horrible smell
corey gave that kid a good dirty sanchez
by cma05wl November 26, 2009
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