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A particularly soft bowel movement, usually diarrhea-like.
After a hard night of drinking, I was a butt mud factory.
by Webster April 18, 2004
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Aug 11 Word of the Day
A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.
"My boyfriend has a total case of brain worms. He told me the cat was bugged so the Feds could listen in on us having sex..."

or

"You totally stumbled over that entire sentence. Can't speak English all of a sudden? What, do you have brain worms?"
by _Jez_ October 03, 2009
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4
the primary mortar ingredient found in the crack of the ass, used as the cement to hold dingleberries together.
mom to child: make sure you wipe the butt-mud out of your crack
by Snarfer January 03, 2006
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6
A sludge like matter that flows from one's anal crack, usually initiated by a upset stomach. See also
Man, that Randi Roads radio show really gives me butt mud!
by Jay Vinson November 15, 2006
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