a sexual act where one fingers one's partner's anus and then gives oneself or one's partner a mustache with the filthy finger
That Jessica's such a slut - she's given half the boys in school a filthy sanchez.
by Sanchez August 13, 2004
Get the filthy sanchez mug.
Much like the Dirty Sanchez but instead of sticking your fingers in her ass, u stick your fingers in your own ass and wipe it under her nose.
I got drunk with your mom and I gave her the Ole "Filthy Sanchez"!
by Trainwrek the Nomad October 2, 2018
Get the Filthy Sanchez mug.
1. the sexual act of following anal sex immediately with oral sex, which causes residual fecal matter to coagulate on the recipient's upper lip, resembling a Mexican handlebar moustache

2. Unexplained sexual position taught by South Park character Mr. Garrison to his kindergarten class.
(1) 'Naw, I gave that slut Jessica a Filthy Sanchez, dude, not the other way around!'
(2) 'Ike, do you know what a "Filthy Sanchez" is?'
by 1337 d00d July 1, 2005
Get the Filthy Sanchez mug.
This slut at the taqueria follwed me into the restroom and give me a filthy sanchez.
by Zrabbit August 10, 2005
Get the Filthy Sanchez mug.