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The act of punching a woman in the abdominal region after performing anal intercourse; causing a large volume of human waste to be thrust out in a liquid form.
I was fucking Cindy last night and I decided to give her the old Muddy River. Sadly, I had to get new sheets.
by OG Pueblo September 25, 2007
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Jul 20 Word of the Day
A pick me is a woman that is willing to do anything for male approval. She will embarrass or throw other women under the bus to achieve this goal. The unfortunate thing about a pick me is usually the men they are trying to seek approval from are of poor quality and treat women badly, leaving little real benefit for the pick me.
Pick me: If a man cheats on you, it's probably because you your fault. Be feminine! Make him food! Clean his ass hole!

Rational person: Shut up psycho
by 84848cheese December 01, 2020
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2
A form of anal intercourse in which the male partner vigorously fucks his female counterpart until she begins to bleed, at which point he gives her a Mike Tyson directly to the lower abdomen. Usually causes uncontrollable shitting by the female; in rare cases, she may even go through anal prolapse.
I just cocked my fist back and gave her a straight right hook to the stomach. What a Muddy River.
by Hieidark123 July 27, 2010
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3
where a girl takes a massive dump on your lap and makes you piss yourself
merlin miranda got her revenge on me by tieing me to a chair and performing a muddy river on my lap.
by wordup247 October 27, 2010
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