you fuck the shit out of a bitch on her period then you take your dick and wipe the blood all over her face - giving her a menstrual mask
Girl: Man, I need a red mask for the play tonight.
Man: Hey bitch, you on your period?
Girl: Yeah...
Man: Let me fuck you - im gonna give you a menstrual mask - the darkest red you will ever see. Lets go bitch
by Menstrual Mask Master May 11, 2006
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Any man that can put up with the bitchiness, moodiness, and bullshit of a woman when she's on her period and still retain his sanity.
Example of a Menstrual Stormtrooper:

"My bitch has been ragging for the last 3 weeks, and if she don't take any fucking Midol I'm going to go Darth Vader on her ass!"
by sockboy666 July 14, 2009
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the bloody discharge from a womans vagina during her menstual cycle
i prefer to eat my poonnanny without menstrual gravy
by slapphappyseven November 9, 2008
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The Day all women worldwide have their period on the same day
The Menstrual Equinox will be the death of all Man kind
by Kj Nay November 2, 2011
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The art of fornicating with a female during her period. also referred to as parting the red sea, geting your red-wings, or canoeing in a blood ocean.
Friend: Hey alex, what are you up to tonight?

Alex: Im exercising my religion, im acting as menstrual moses in my bedroom play with nicole tonight.

Friend: Damn homie, make sure you wear a condom

Alex: Christianity does not permit the use of condoms, im skinny dipping tonight!
by wadditz88 May 6, 2009
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Pertaining to any female who has a period seemingly every day.
Dewd, I see your sister yelling at you every day! She is a total menstrual mongoose.
by Kyo Shinda March 12, 2010
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Usually initiated by the guy, an act and symbol of relief that one's lady friend is menstruating and thus, not pregnant. For example, if your girlfriend is on an oral contraceptive and you decide to pull the goalie for the season, one may start to worry that the pill may not be 100% effective. In this instance, one is excited when that time of the month comes and upon hearing of Aunt Flow's visit, a menstrual high-five is warranted.
Guy: hey babe, this party blows. Wanna sneak into the laundry room and fuck on their dryer?

Girl: I can't. I got my period this morning...

Guy: Whew! Menstrual high-five!!!

*puts up arm with a Todd-from-Scrubs-like grin*
by hardcore Rx May 7, 2011
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