Three Block Thug Share definition Flag (Noun) An extremely low-level thug that engages in bottom-feeding crimes within a 3-block radius. "Damn homie, that nigga' is sho' is a three block thug" Three Block Thug by The_Word_Baker_Strikes_Again September 1, 2009 0 0 Get merch Get the Three Block Thug mug. Buy Now — $32.95 See more merch