TNBC Share definition Flag An abbreviation for "The Nightmare Before Christmas", a cult movie that centers around an abused doll and a lonley skeleton. "There are few who deny, at what I do I am the best, for my talents are renouned far and wide." TNBC by The Living Receiver February 18, 2004 0 0 Get merch Get the TNBC mug. Buy Now — $32.95 See more merch