n. Physical awkwardness occurring between bros and brahs at the moment their "fraternal" relationship takes a turn for the Greek.
In a sick/hot moment when their eyes met through the haze of booze at the frat party, Erick's and Zack's sudden, unintended broners told them that nothing would ever be the same between them again.
By MudFlap33
A boner you get when looking at man on man porno.
I recently watched a gay porn video. I had the weirdest broner
By Jusitn Beiber
1. A bro's boner 2. An erection achieved while in the commission of fraternal events.
Trent: Touch my broner dude.
By Albert E.
n. A boner one has for one's brother.
Damn, I bet Payton Manning's TD just gave Eli a huge broner!
By Tobias Funke
An erection caused by the sight of an attractive female driving an 80's moddle Ford Bronco II.
"Dude, that chick in the bronco just gave me a huge broner!"
By LP Beef