When a man is going through his monthlies
"You are a bitch right now - are you on your manstration?"
by Jeremy W September 12, 2005
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when a man is in a particularly unpleasant mood, for no appearant reason.

A short tempered man
The male term for PMS, or bitchiness
Kyle: Dude just shut up already, you're annoying the hell out of me.

Sammy: Would you like me to get a tampon for that manstration?
by Ima Crazy Bitch August 15, 2009
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when a man is in a particularly unpleasant mood, for no appearant reason.

A short tempered man

The male term for PMS, or bitchiness
eg: w loots - manstration
by synergyxcoza January 14, 2011
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Manstration is when a man becomes bitchy and theres some blood involved...

the word comes from man and frustration.
Billy and Jim got into a fist fight... I think its due to Jim's manstration... I dont want to clean up their mess.
by Au. December 19, 2015
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The incidents of irrational, emotional behavior that a male in a commited relationship subjects only their female partner to. Basically, when your boyfriend is being a little bitch for no apparent reason.
"What's wrong, baby?" - Bonquisha
"Nuthin'" - Lil' Rayray
"Everything a'ight?" - Bonquisha
"Just back the f$&# off me, woman, let me be!" - Lil' Rayray
"Damn, baby, it's coo, it's coo, I didn't know you was manstrating!" - Bonquisha
by Ælystea December 12, 2006
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Present progressive form of manstrate: (v) Cyclical emotional patterns to which men are at times susceptible.
Don't f*** with me, I'm manstrating right now.
by Greyson December 12, 2007
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The irrational periods of anger that all males will experience at least once. Usually lasts 24-48 hours.

It is believed to be due to a random influx of testosterone in the male's body. It is the driving force behind all creation, all civilization, and all invention.
_______________________________
Symptoms include, but are not limited to:
-Wanting to punch inanimate objects for no specific reason
-Pulsing headaches that can only be treated by punching things
-Voracious hunger, best remedied with large quantities of steak.
-Excessive swearing
-Excessive drinking
-Insomnia/Narcolepsy
-Agoraphobia/agoraphilia
-Photophobia/photophilia
-Periods of intense intelligence/ambition followed by periods of ignorance/lethargy
Julianus: Shit bro, I'm manstrating hard. Wanna build an empire to fuck shit up?

Romulus: Sure man, creating an empire that has a big ass legion must be the equivalent of punching dozens of inanimate objects.

Julianus: True shit. That's one of the best cures for Manstration.
by Bando-De-Shamrock May 29, 2013
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