Upchuck muff is when an individual is eating out a woman and throws up in her vagina.
"Dude, I was with this girl last night after leaving the bar and, well, lets just say she has an upchuck muff."
by Upchuck muff mike February 24, 2018
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When you're fucking a chick doggy style, she's hanging her head over the toilet either, dry heaving or upchucking (vomiting).
Woman is drunk, you're drunk, you gotta get your nut. So, you enter her from behind even though she is starting to throw up, or upchucking, maybe she's got the dry heaves and nothing comes out of her mouth. You don't care as long as you get to upchuck fuck.
by Redballs May 30, 2008
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The distance one could safely travel to the toilet before vomitting; an estimated distance between an arm's reach and a stone's throw.
Vladislav stayed within an upchuck's run of the toilet after eating Taco Bell.
by garrett_oh May 5, 2016
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When a woman somehow decides to suck a Hick Chimp off, swallows his semen, and then vomits it back up all over the Chim's face.
Any girl Steve is ever with will perform an upchuck hick
by Go Mets December 3, 2006
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When a drunk and disorderly person goes down on their partner and throws up on their partner's genitals
Yo, how did it go with that chick last night, did you bang her?
Nah, she was upset and left early after I gave her an Alabama Upchuck
by x_Z$_x January 27, 2011
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When in the act of performing fellatio the penis ventures a little too deep for their partner thus resulting in them throwing up all over your sweaty cigar. The shock of this causes the receiver to faint while the giver flees weeping.
" Alan thought the blow job was going pretty well until Sarah, to his horror, had a Fellatio Upchuck "
by benji the bandit 22 March 1, 2009
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