The end result of clenching your butt cheeks together on a turtle head making it's way outside of your ass. This especially happens when you're short on film time and can't take a break to take a giant dump, and always requires wet-wipes to completely wipe yourself clean.
Would normally be referred as diarrhea, but is horribly worse. M.M.B. could result in a rectal prolapse and death. This horrid case of explosive shit squirts creates a stench so horrible that can erode iron, cause brain aneurysms, will knock a man unconscious within a 69 mile radius. M.M.B. is normally caused by malnutrition and consuming more than 3 prunes in 2 minutes. There was once a man who had a case ofM.M.B., he did not live to tell his story. While using the bathroom, the blast of his M.M.B rocketed him off the toilet, thrashing his limp body to the solid pavement. The force of the impact broke all of his bones, paralyzed him then killed him instantly. Learn from his experience.
D00d, I think I might have Mississippi Mudd Butt . Its br00ta1, I need to use your shitter.
When you go to the toilet and a big ass soft serve shiat and you use a whole roll of toilet to clean your funky a$$; taking a huge "pudding" type shiat; Normally smells like big Punn took that shiat;
Damn Punn, you got a bad case of the mudd butt.. Smells like Los Reyes up in this biatch!