The unordinary, unpleasant state of being exuberantly mucussy.
Person 1: man, I've been feeling really mucked up recently.

Person 2: How do you mean?

Person 1: ja know, just super mucussy
by Random_yomamandme September 22, 2022
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Put your balls in her mouth and get her to hum until you muck up on her face.
by Jumpy June 17, 2006
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muck up day is usually when year 12s do a prank similar to senior pranks. mostly used and done in australian public schools
P1 : What are you doing for muck up day?
P2 : tying a year 7 to a pole.
by eedeen November 6, 2021
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when a woman's vagina and rectum fuse,then ulcerate, causing feces to come out of the vagina.
i would not want to be a mucked up cunt, or go down on one either.
by ol upchuck November 30, 2020
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