Manstrual 

adj. Being of male species and having an extremely emotional menstrual cycle. With up and down emotions. Ranging from one day to a whole month.

Girlfriend: "Damn Billy you've been acting really emotional lately".
Billy: "Sorry babe, I've been on my manstrual cycle, should clear up when I drop my balls".

Manstrual by CAMMYdoodles February 6, 2009

MANstrual cycle 

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.

MANstrual cycle by livelyliv September 1, 2013

Manstrual Period 

1. The time of the month when a man acts moody and generally pissed off for no apparent reason.

2. A period of moodiness for men similar to that associated with the female menstrual period which often corresponds to his wife or girlfriend's menstrual period.

1. Joe: "Hey Bob!"
Bob:"Screw you!"
Joe: "What's his problem?"
Andy: "Oh hes probly just on his manstrual period."
Joe: "Oh, it's that time of the month."

2. Boss: "I needed those projects done yesterday!"
Worker: "Whoa what's his problem?"
Co-Worker: "His wife's having her period."
Worker: "Oh, so he's having his manstrual period."

Manstrual Period by Badtouchr December 9, 2009

manstrual cycle 

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.

manstrual cycle by dustin miner April 8, 2008

Manstrual cycle 

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.

Manstrual cycle by Notyourgirl April 26, 2015

manstrual cramps 

When a man has to poop or fart so badly that the pressure builds up to an extremely uncomfortable level. often causes manstration.

my buddy had to poop so badly he got all pissy from the manstrual cramps.

manstrual cramps by owurnvoisdngl February 27, 2010

Manstrual Synchrony 

When dudes hang out so much they end up acting and thinking the same. Similar to when girls menstraul cycles synch up.

Jim and Adam are in manstrual synchrony.

Manstrual Synchrony by MichaelScarn May 13, 2013