A male who hates women and expresses it either verbally or through his actions. Typically they are geeks who never get laid and got dissed by chicks they masturbated over for years before they finally got up the nerve to ask them out. They should also be considered on the very verge of complete homosexuality.
Typical insecure male: Dude women are so inferior to men. They suck at everything. They're such whores and they're so stupid. I hate them all!
Other guy (not insecure about his abilities to operate as a full functioning man): Dude...are you a homo?