doin a girl in the butt then pullin out and shootin it in her mouth.
my hizo wouldnt stop bithcen so i muddnutted her.
by the gavo69 February 12, 2003
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n. ejaculate; cum; sperm

Originates from Smodcast (Kevin Smith and Scott Mosier podcast) Episode 91 at the 52:44 mark where guest Malcolm Ingram credits uber-producer Scott Mosier with the genesis of the term.
"After the Nut Mud leaves my dick, I'm done. I'm very self-loathing."
by Ned Smitty September 09, 2009
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When your banging a chick so hard she farts out a little shit on to your balls. Also see Mud Flaps.
"I was fucking that chick so hard she blew out a little nut mud."
by MR. SHARKEY February 19, 2007
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Evidence of poor preparation before anal sex.
"Jeez Eric sure had a lot of Mud on the nuts after his Craigslist ad!"
by Hanging69 March 25, 2016
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