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1.
Under anal intercourse, put your finger up her anus, then draw your finger over her upper lip, giving her a brown stripe resembling a mexican revolutionist mustache. Thus "Dirty Sanches"
I gave her a DIRTY SANCES yesterday, and she started a revolution on me!
by per March 10, 2005
 
2.
This guy spelled gets a dirty sanchez because he spelled it dirty sanches
by Aidem January 27, 2008