look up any word, like sapiosexual:
 
5.
when a man has taken it hard in the ass and needs to wear a kotex to absorb the fluids,is in a bitchy mood and won't have sex for a week
what is that lump in his shorts,he must be manstrating. that poor bastaed
by JEFF KOWALSKI March 13, 2008
12 29
 
1.
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
108 23
 
2.
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 11, 2007
40 18
 
3.
When a man is in a shitty mood for an extended period of time. similar to a womans pms.
1st guy: I don't know whats wrong with that guy he's been in a shitty mood all week.

2nd guy: Yeah i guess hes manstrating.
by Douchebahg January 25, 2010
20 7
 
4.
A guy who is really irritable, bitchy and indecisive. Just like girls on their period. Basically, a man who is menstruating.
Before the Partwii, Lauren, the cyborg, bus surfed over to Mickey D’s with his brofriend Chuck Norris and bought a McGangbang happy meal with the funds that he jacked from his sugar momma after his disco nap that afternoon. Chuck pulled out his phone from his nuthuggers and started sexting a ginger slice with a tramp stamp that he had been friendly following ever since they shared a game of Jager pong. Lauren gave Chuck the air jerk as he noticed Tanasa the grade digger that sat next to him in his art class. Lauren gave her the “let’s just be friends” nod and grabbed his happy meal. As Lauren walked outside he saw, Bruce, the designated drunk, as he started wailing teenybopper show tunes. Bruce was manstrating again and wanted his fix of Dr. Pepper and Big league chew. The night of celebrating Lauren’s nomotion had barely even started and already he was knackered.
by Micron X February 24, 2010
16 9