(muhdh - buht) n. med. (usu. pre. by 'the') Mud Butt is a common affliction of the anus and the glutteal crevice, affecting mainly (but not limited to) "heavies". The condition usually occurs 30 to 45 minutes after defecation, especially if sufferer engages in physical activity within this time. Sweat and some remaining feces (though one's wiping habits may be immactulate) mix in the glutteal crevice, causing mild discomfort and, if not treated, a raw ass.

What you call your balls after getting Nut Mud.

When a girl is licking your ass and you fart in her mouth blowing her cheeks fill up with ass air making it look like she is playing your ass trumpet

The worst kind of diarrhea, usually occurring after a bowel-angering meal. Typical stages of the mud include, but are not limited to: farts you don't want to let out for fear that it won't only be air, followed by 20+ minutes of anal hell. Allow 15 minutes for cleanup.

Sweating profusely to the point it runs down your back and into your ass crack producing a foul odored sticky mess in your undershorts.

hot burning diarreah. piss from the ass

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;