There's plenty of bro-cabulary out there referring to the characteristics and behavioral patterns of bros. In fact, the word "bro" came into mass popularity after the infamous "Don't tase me bro" phenom, because the worst part is, often a "bro" is a guy that calls other guys "bro."
So here's a new word that encapsulates the ultimate, insufferable dude that brings together the worst of two worlds:
Brochebag: (noun) the unfortunate combination of a bro and a douchebag
And we all know one of them.
I'm pretty sure I made this word up. Nothing comes up when you Google it.