Top definition
When u pin someone down and instinctively
fart on their face creating a "Mud Mask"
Man when i had the runs, i gave her a serious mudmask!!
by Mitch April 13, 2005
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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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2
You wait for your partner to roll to one side of their pillow, shit on the other side, and then watch them roll back onto it.
"Dude, Jason is gonna give you a Mud Mask tomorrow morning."
by Drummererb August 28, 2006
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3
When a person shits in a womens vagina and then eats her out.
Last night I gave her a Mud Mask and my face still smells like shit.
by Manotaur December 04, 2007
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