Similar to the term "Broseph", used as a term of endearment to describe another member of your crew, specifically one you hold in high regard, like a trophy.
A variation of "hyphy". Getting "brophy" includes getting hyphy with a bunch of dudes or getting hyphy at a place a "bro" would hang out, such as the beach or the lake.
Guy: Man I have no idea how to clean teeth!
Dude: You should totally invite your bro down and just do a brophy. They are way less stressful.
Guy: True that brohan, I'm going to cut his gums up!