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The evil entity that comes to women once a month, resulting in said female becoming the biggest bitch of the best.
Ed: Dude, did you see how she blew me off?
Bill: Yea, she's got the menstural monster.
by Himawari Takami December 10, 2008

Words related to Menstural Monster

ass chewing bitch evil fear menstrual monster period run shark shark week