BFFLUSBAB Share definition Flag BFFLUSBAB is "Best Friends For Life Until She Became A Bitch" girl1: "Oh my gosh, I hate her!" girl2: "Me too. We were BFFLUSBAB" BFFLUSBAB by Shybutsecretlyinsane June 10, 2009 0 0 Get merch Get the BFFLUSBAB mug. Buy Now — $32.95 See more merch