It is when you have diarrhea and you eject your watery feces all over your partner during intercourse. The diarrhea has a muddy appearance and is slippery (like a slip ‘n’ slide) which is why the term “mudslide” is used.
by David Cantonicle September 20, 2006
Drink made with Patron Cafe and Monster Mocha. Adding a shot of patron silver makes it a Dirty Sanchez.
by Kirby68 February 16, 2016
Having vaginal intercourse with a girl on her period. Followed by anal sex with a penis still covered in period juices.
"My friend got weirded out having sex with a girl on her period, so he flipped her over and gave her a crimson mudslide"
by Hugh Gass August 06, 2005
by Postal Dude August 07, 2006
A Siberian mudslide can be performed via multiple sexual positions and among both heterosexual and homosexual partners, however doggystyle is the preferable position for maximum value. It is also recommended that you ingest a large helping of horse laxatives approximately 30-40 minutes before sex. After ejaculating onto your partner's back (preferably as high as possible without entering the neck area), quickly point your anus onto the semen that you've just laid and defecate as much as possible before your partner moves. Your partner will quickly realize what is transpiring, causing him or her to quickly jump up, thus causing the whitish-brown semen feces explosion to slide down his or her back, thus resembling an icy mudslide in Siberia.
Mike 1: Yo you'll never guess what I did to my wife last night!
Mike 2: Dude what???
Mike 1: I took 30 grams of pure bear laxatives, came on her back and gave her a good old Siberian mudslide.
Mike 2: Dude no way, let me get some of those laxatives and I'll try it tonight!
Mike 2: Dude what???
Mike 1: I took 30 grams of pure bear laxatives, came on her back and gave her a good old Siberian mudslide.
Mike 2: Dude no way, let me get some of those laxatives and I'll try it tonight!
by Mike and Mike the Accountants February 10, 2017
Bend over and tuck your weiner between your legs, get someone to perform fellatio from behind you, and as you cum also release your bowels so as to let the mud slide down the shaft into the fellaters face and mouth.
alex was feeling frisky so he asked sue to give him a rusty mudslide and she said but I just brushed my teeth. Alex said I don't give a damn I wanna shat on your face.
by jayhu sanje April 13, 2011
When you're having sex with someone then proceed to shit on their stomach, rub your hand in it; then shove it in their mouth.
by Ovulate September 08, 2016