Broner is not a object like a boner. Broner is a fealing of happiness when with one or more of your "bros". broner can be used as a gay term but will not hold the same meaning. Non gay word. If another guy comments on a mans broner it is now gay.
Non-gay<normal meaning> Dude that was a good run it gave me a broner.
Gay<dont use it> Dude your'e broner is so big, dude look at my broner, my broner is so big.