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.
by dirty_bird November 21, 2006
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."
by Wikipedia83 October 3, 2006
by lord farkwad May 3, 2008
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’.
by Numman March 9, 2019
by Tj will December 20, 2017
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.
Stef: I got a fucking Dirty Sanchez.
Friend:That's just nasty.
by Bettlejuice February 3, 2017
when anyone male or female stick there finger up his or her ass and rubs it along someones mustache leaving a horrible smell
by cma05wl November 26, 2009