A masculist is any person who advocates for the rights, equality and dignity of the male sex.
Dude 1 - "Why do you look so pissed off when you watch TV man?"
Dude 2 - "Because in the media, almost every representation of men makes us look like brainless boofheads or violent evil oppressors."
Dude 1 - "Bro, you sound like a masculist."
A person who is for equal rights for men.
Masculist theory dictates that she should have to take out the trash sometimes too.