Two bros (often from the OC) who are friends for life. They will often drive the same trucks, drink the same beer, and date the same girls. Their friendship stops just short of being physical. In short, Bro-FFs are the Southern Californian male equivalent of teenage girls and their BFFs.
Last night my Bro-FF and I went shopping for backwards hats, drank a few brewskies, and ended up shaving each others' asses.