B.K Share definition Flag a blood killa all me Crips in Flatbush know wut im talkin bkout right..............RIGHT!! All me Crip plus me and ne1 in their right mind would say B.K fo life!!! BIATCH!!!!! B.K by Method Gurl January 22, 2004 0 0 Get merch Get the B.K mug. Buy Now — $32.95 See more merch