filthy sanchez 

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.

filthy sanchez by Sanchez August 13, 2004

Filthy Sanchez 

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"!

Filthy Sanchez by Trainwrek the Nomad October 2, 2018

Filthy Sanchez 

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?'

Filthy Sanchez by 1337 d00d July 13, 2005

Filthy Sanchez 

Receiving oral sex while taking a shit on the toilet.

This slut at the taqueria follwed me into the restroom and give me a filthy sanchez.

Filthy Sanchez by Zrabbit September 3, 2005