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

manstration

When a man is going through his monthlies

"You are a bitch right now - are you on your manstration?"

manstration by Jeremy W September 25, 2005

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

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

mansturbating 

A man masturbating to the thought of other gay men

I found gay porn on Patrick's computer, he must have been mansturbating

mansturbating by DR MD August 26, 2009

monsterating 

When two or more women in a household are synchronized with their menstrual cycles.

I have to get out of the house this weekend. My wife and daughter are monsterating.

monsterating by jeff74008 May 28, 2012