A small spat of diahreah is literally blown out of the anus, masqueraded as mere gas. Not until the actual exit from the anus, does the unfortunate mud blower realize that what they believed to be simple gas, turned out to be a forceful eruption of diarreah. To blow mud; blowing mud; blew mud;
I had to leave work early because I thought I was in the clear to bust a real loud ass fart, I was going to let one rip, but it turned out that I blew mud all over my underwear instead. I have to escape quickly before the smell is detected by a colleague. (Blow Mud)
by tsohma September 29, 2005
A rapid evacuation of feces from the colon. Diarrhea. A violent defecation.

"After eating at Taco Bell, I always have to blow mud."
by Kibo April 09, 2003
When you're takin' a dump and semi-thick liquid comes out of your ass and spackles the toilet.
"Hey man, are you gonna' go in my bathroom and blow mud"?
by Sweet Chuck January 04, 2005
A rapid evacuation of feces from the colon. Diarrhea. A violent defecation.
"After eating at Taco Bell, I always have to blow mud."
by Kibo April 09, 2003
To have an explosive bowel-movement that leaves splatters of fecal matter on the sides of the bowl and under the toilet seat that are often difficult to remove if left to dry.
After two servings at that Chinese buffet I ran in the toilet to blowmud.
by International Giant August 28, 2013

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