Though some consider it a male version of the friend zone; it is widely accepted that the Bro Zone is worse for the poor women stuck in it.
In essence it is when a woman is crowned "one of the guys." She's considered to be part of the dude pack without the sexual tension. Men behave without restraint around the individual; not worrying about what the woman might think or wether they impress her or not. She is accepted and embraced into the pack as an equal. In short, "she's a dude."
Women may endup in the Bro Zone by any of the following: easy going, friendly, social, accepting but also obsession with sports, curses like a sailor, not too attractive, macho like characteristics, butch
Women with mostly male friends are more susceptible to have several Bro Zone's. Also, most women in the Bro Zone do have a love interest they fail to impress because of the Zone. They endup listening to their love interests' girlfriend problems and, at times, his sexual encounters. All culminating with him saying "you're such an awesome friend."
Guy #1 - "Dude, you shoulda' seen what happened with my girl the other day!"
Guy #2 - "Shhh, you sure you want to say that around Lyndsey?!"
Guy #1 - "Yea man, it's cool, she's like one of the guys!"
Marcy: *sigh* he called me his "buddy"...his "bro"
Katie: ooooo hate to say this...you're permanantly in his bro-zone.
Marcy: ya, and I still like him.
Katie: you might as well give up on him, there's no hope now that you're in the bro-zone.
After going on a week-long bender at the Bro Zone, I checked myself into detox.
"Who's that donkey you were with last night?" "Oh just some skank I met at the Bro Zone last weekend."
Jared: Nah, she's in the brozone.