1 definition by Douchebahg

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
Get the Manstrating mug.