The sexual act in which, after a thorough reaming of a ladies ass, you flip her upside down and poop into her gaping butt cavity.
Last night I gave that skank whore the old Mongolian Chimney sweep and got crap all over the hotel.
by El Kroppo July 18, 2008
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Believed to have been started by Genghis Khan, it's the act of licking a person's anus shortly after they've had a bowel movement without having showered.
I love taking my wife out for burritos and beer because when we get home, she lets me give her a Mongolian Mud Munch every time.
by Daddy big hands May 13, 2016
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When you reach in and pull out her IUD and continue riding into battle.
“Damn she has so many kids”
“Yeah I heard the father was a Mongolian treasure thief
by birdbrain418 April 20, 2023
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A creepy kid who stalks you and leaves Mongolian beef under ur pillow on Christmas Eve
Ben: " Hey, Dan is so weird..."
Jack: " Yeah, he's probably a Mongolian Christmas elf!
by Willboydog November 29, 2016
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When one places one's penis and Testicles behind ones legs, conveying the illusion that a vaginal canal is present when there is in fact a hidden dong.

The maneuver goes back thousands of years and some even say Hitler was spotted performing the act after consuming large amounts of Jagermeister.

The act was brought to attention in popular culture by such figures as Buffalo Bill and even Jay in clerks 2.
Mussolini: Adolf, what the hell are you doing?

Hitler: (standing with dick tucked between legs) Mongolian sex change, yo.
by Mike Oksmall October 6, 2013
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When a girl has explosive diaherra, and ten men with erect penis' charge her asshole.
When me and my nine friends were gangbanging your grandma after she had burritos, she yelled i feel my stomach brewing something get, get ready for a mongolian horse race. We all knew what that meant, so we all got erect and charged her asshole.
by pdodledad August 2, 2010
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While having sex with a girl, you stick a burrito in her bum and then eat it.
Dude, you should totes try a Mongolian Butt Muncher
by holysweetgoddamn! January 15, 2011
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