mensturating 

An unfortunately common misspelling of the more accurate term "menstruating". Quite popular on UrbanDictionary.com

Examples abound, far too many to begin to list here. "Mensturating" typically appears to feature in colorful, often crude, articles written by juveniles more interested in the 'gross factor' of their articles than the accuracy of their spelling.

mensturating by Gleaming cat-eye April 17, 2010

Manstruating 

When a male is going through a period of increased irritability and moodiness.

Geez, Jermaine, what's up with HB? He's been so pissy lately. He must be manstruating. Give him a manpon.

Manstruating by Pucas Leters April 15, 2008

Manstruating 

When a guy gets really hormonal and PMS-y. They get random mood swings. It comes more often than once a month.

John was very moody Saturday. He must have been manstruating.

Manstruating by 4564315 June 9, 2011

manstruating 

(not to be confused under any circumstances with menstruating, therefore, it's spelled with an a after the m, and not an e): very offensive, for men to be incessantly quetching and complaining about this and that, and pentoute not behaving like a typical pragmatic rational male.

advice for men who hate their boss: stop manstruating about how you hate your boss and don't make enough money, read John Gray's Men are from Mars, women are from Venus, and then behave like a rational, pragmatic male by changing jobs.

manstruating by Uncle Dimma October 17, 2013

Monsterating 

When a woman's time of the month makes her extremely grumpy/angry/hungry. Inspired by "Modern Family".

Luke: Did you see Alex cry about the commercial, then scream at me for not bringing her enough ice cream?
Phil: Yea she's totally monsterating right now, stay away.

Monsterating by ChiliBoy June 17, 2012

manstrating 

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

manstrating by Ælystea December 19, 2006

manstruating 

manstruate, manstruation
masculine variation on menstruate,
When a man displays behavior that is reminiscent of mood swings brought on by the female monthy cycle.

Brian has been a bitch all day; he must be manstruating.

manstruating by Peter Thomas October 13, 2005