A vile beast that takes over ones girlfriend, turning her into a freakish werewolf that will howl at you annoyingly no matter what you say, and be a rotten bitch to boot
yeah the menstruation monster strikes again, poor bastard didn't see it coming. I'll miss him
by Jag atamis April 28, 2008
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A period of time that occurs once a month in which women experience frustration with men.
Michael: Yo, my girl has been acting so bitchy lately and I just bought her Gucci shoes
Michael's friend: Maybe she has menstruation
by stargirllover May 22, 2018
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What happens when your girl has aunt flow in town and you barter for head or anal.
After my girl red tide stayed for a week, I reached a menstruation compromise for some brown eye.
by jab131 May 17, 2005
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When you begin to break out before/during/after your period.
Sam: Why are you wearing so much makeup?
Julie: Oh, I've gotten my menstruation constellation.
by caffinitive July 5, 2014
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When Sam bleeds out of his coochie
Sam menstruating

Sam: “I hate all of you go die in a hole

Connor and friends: “Wow, Sam began menstruating”
by SamMenstruates.com February 5, 2021
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the little known, oft denied, perfectly natural phenomenon whereby the male secretes menstrual fluid from his prostate
"oh great - that works out nicely. i can't have sex either - i'm on my period, on account of the perfectly natural phenomenon that is male menstruation" - mr. x
by mr. xoxoxo August 13, 2008
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A whore who is menstruating. Stay clear or else. Then again the fact you called her this is going to get you in trouble anyways
ex. Brittney Spears on the rag
Girl: Where did you put my tampons?
Guy: I don't know look for them yourself!
Girl: I'm going to bleed all over you if you don't help me
Guy: Shutup you menstruating whore!
by Nedex March 2, 2011
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