When engaging in particularly rough anal sex, pull out and scrap all fecal matter/juice and coat the entire sack. You then turn and tea bag a waiting third party.
Jim: "Holy shit! Cassie and Sarah let me give them both the Mississippi Mud Sack last night!"
Steve: "You're my hero Jim!!!"
Steve: "You're my hero Jim!!!"
by Peppercornbingle April 15, 2009

Budweiser beer. The king of fag beers
In Colorado, we drink REAL BEER, not Mississippi River Horse Piss
In Colorado, we drink REAL BEER, not Mississippi River Horse Piss
by F550 Powerstroke March 20, 2014

Two menstruating females take exquisite-sized bowel movements (this helps if you eat chili, salad dressing and corn dogs), but do not wipe. Then they tie down their victim and slide their downstairs areas over his face, starting bum to mouth. They then take turns urinating on his face, preferably while he's vomiting.
Once they saw Jeremy passed out, they dragged him into the bed and performed a Double Dirty Mississippi Mudslide.
by Pammy D December 7, 2010

by Big Ern Mccracken February 16, 2020

by Dingis232 May 3, 2023

by tiggytigwam January 20, 2018

A sexual act which leaves its victims either dead, or at minimum, with cripling retardation. In one documented case, a man was left with no memory of who he was, the only words he could summon from his lips (with a great studder) where "Mississippi gnarly" like a sad version of "Groot" or "Hordor". Scientist die each year researching the enchanting act of the Mississippi Gnarly. Researchers have found (after years of research) that the origin of the act was developed in Mississippi. However further evidence points toward the creation of the Mississippi Gnarly occurring on a bedroom floor in eastern Virginia.
by Konnie May 7, 2019
