Nasty Sanchez 

the act of sticking a finger in one's own ass and rubbing it against their partner's upper lip, not to be confused with the dirty sanchez which differs because one inserts one's finger into their partner's ass before such lip smearing.

dude, i was railing my neighbors sister the other night, my hemmoroids were acting up so I scratched my booty and came up with a plum, couldn't waste it so i gave that bitch a nasty sanchez

Nasty Sanchez by Franklin with an "F' December 9, 2008

Nasty Sanchez 

When one sticks one's finger up a girls azz and then wipes it under her nose, leaving a "mustache".

Man, you should've seen the look on her face when I gave her a Nasty Sanchez.

Nasty Sanchez by Never Done a Nasty Sanchez September 24, 2003

nasty sanchez 

see: Dirty Sanchez

confusion over the word Dirty and Nasty brought the creation of "Dirty Sanchez" when in reality, the Slang term derives from "NASTY Sanchez"

Fred Norris went to a gay bar, ended up drunk in a gay wrestlers pad, laid flat on his back with his ankles pinned to the back of his ears. The gay wrestler pulled out and wiped his shit filled penis on Freds upper lip giving him a Nasty Sanchez.

nasty sanchez by joekekekeke October 11, 2006

Nasty Sanchez 

Fucking a girl in the ass then making her suck your dick.

"I gave Lola a nasty sanchez. I wonder if she brushed her teeth."

Nasty Sanchez by James Strummer November 29, 2003