1. A girl who is "like one of the guys" or cool to hang out with, but not in a sexual or romantic way.
We're playing football with some bros and fembros.
1. An event during which men ride eachother around like horses in a rodeo, thus BROdeo
2. A party or social event where more men are present than females. (synonym: "sausage fest")
Man, this is a brodeo, let's get outta here