Fla'ngnaa Share definition Flag 1. A random object within the vicinity of the speaker, often a peripherial used in illgeal substance consumption. Drugs. yo bra' pass de fla'ngnaa This fla'ngnaa is chronic heavy, u kno! Fla'ngnaa by Owain y Matt November 16, 2006 0 0 Get merch Get the Fla'ngnaa mug. Buy Now — $32.95 See more merch