A Brioche Boy is someone who thinks they are cool by constantly drinking monster energy drinks and saying that ever girl they come across is fit. Brioche Boys also think they are really hard and try to fight everyone, but when someone bigger than them starts they pussy out of it.
Brioche Boy: "Wow, that girl is peng lad"
Other kid: "Ok, Brioche"
Brioche Boy: "Ok come on then, I'll have you!"
Other kid: "Oh yeah, what are you gonna do, monster addict?"
Brioche Boy: "Shut up cum stain, I'm leaving!"