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When a man who is normally quite kind and level headed, goes completely moody and rude for a couple of days. They will have all the moodiness and irritability of a girl on her period, hence MANstrual cycle.
Person 1: Jeez, what's going on with Jim? He's never this moody.

Person 2: it must be his MANstrual cycle.
by livelyliv July 26, 2013
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Aug 10 Word of the Day
Running for exercise and picking up trash you find along the way. It's good for the body, mind, soul, and environment! Started in Sweden but is making its way to the U. S.
It's nice out and the city is filthy. Let's go plogging!
by Another damn hippie. May 09, 2018
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The manstrual cycle occurs during a man's special time of the month, when the male becomes extremely irritable and eager for intercourse. But due to his irritability, this week is the time when the most masturbation occurs.
Girfriend- What's wrong with (your name here)
Best Friend- Oh, nothing really, he's on his manstrual cycle.
Girlfriend- Oh, I guess I better lay off, and have sex with him.
by dustin miner April 08, 2008
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The only thing that can possibly explain what the fuck is wrong with him this time.
Holy shit, Philip, what are you upset about now? It must be your manstrual cycle making you all bat shit crazy again.
by Notyourgirl April 26, 2015
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Man•strual Cycle - when a man is being bitchy, moody, irrational, or the like at anytime. Similar to the menstrual cycle of females.
Dude, you are being such an irrational bipolar bitch; are you on your manstrual cycle or what!?
by Jarhead2275 August 20, 2017
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The definition of Man-strual Cycle is when a man acts snooty, bossy, or emo right out of the blue.
Another form of the word is weiriod (weer-ee-ud), much like the word period, but for a man. A man's weiriod happens when a man has a flashback of when he first hit puberty. This flashback will trigger very strong emotions that cause the MAN-strual cycle.
Joe: "Why is Tray acting so weird?"
Blake: "I don't know but I think he has his weiriod today..."
-or-
Mother: "Tray! I told you ten minutes ago to bring me your dirty laundry!!!"
Tray: "Ugh, Mom, why are you yelling at me? I hate you! You never told me to bring you my laundryyyyy!"
Father:"What is with Tray today, Cheryl?"
Mother: "I have a feeling he just got his man-strual cycle for the first time..."
Tray: "I'm not deaf, Mom and Dad! Talk about this SOMEWHERE ELSE!!!"
Father: "Woah there, Tray, I have been thinking about talking about the birds and the bees for a long time. You need to know that when..."
by DelaneyMayMay February 07, 2015
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The time in wadolesence when the young man regresses to a female likeness. Can develop the following symptoms: Short temperedness, irrationallity, agressive, development of breasts (man boobs), increased sex drive yet a decreased success.
Steer clear of Adam he's at that time in his manstrual cycle.
by Lewis Wandon June 01, 2005
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