An ex-bro whos lost his bro status by fucking over another bro for a RAT. Deemed the scum of brociety and lowest level. Brothafuckas can only redeem themselves by slaying the hottest rat in the city with another bros permission.
Slang for the term "brotherfucker," meaning one who has sex with their own brother. This type of incestor is probably breaking the law in some way and/or will have deformed babies.
Person A: "Daaamn son, Jake's sister is a brotherfucker!"
Person B: "Say what? That word is too hard to understand."
A: "How about brofo?"
B: "Too short. I don't get it."
A: "She's a.... bruthafucka?"
B: "That's it, man! That ho is one who has sex with their brother if I ever saw one! A straight up bruthafucka."