BLT Share definition Flag n. a female hermaphrodite, who has the legs and tits or a woman, but the balls of a man, hence Balls, Legs, Titties, or BLT. Whoa dude, that chick is packin a sack! Must be a BLT. BLT by MC Derf & gjelstiznles August 17, 2006 0 0 Get merch Get the BLT mug. Buy Now — $32.95 See more merch