A person who simultaneously a stereotypical "bro" as well as a stereotypical stoner.
My friend Collin is such a broner; he's got hippie hair, a three-day beard, Abercrombie clothes, and a sideways upside down visor. He pretty much lives off of creatine shakes and jagermeister, constantly works out at the gym, and he still manages to smoke an eighth a day... such a broner.
by mrrrrow? January 31, 2013
A slang term used to explain the phenomenon during which a fiercly heterosexual male achieves an erection (or, "boner") for or while in the company of one of his male friends (or, "bros"). This may only occur while engaging in all-male activities, particularly those which include feats of strength or displays of hyper-masculinity. Upon achieving a broner, the man in question is often known to exclaim, "dude, suck that shit!" or "meet me in the shower."
The way you creamed that linebacker gave me a total broner.
by Delongpre Dannon February 03, 2007