A guy who actively sticks up for women and their rights whenever he can in an attempt to get ass. Sometimes they even act like huge cockblockers.
Femanists are usually men who usually don't have much luck with women. And they resort to sympathizing with them as another means of getting in their pants.
I was going to take this hot chick at my work to dinner, but this stupid femanist who works with me told her behind my back that she shouldn't let me decide for her. Because of him no dinner.