Rawn Share definition Flag Verb, Mid-South Weeaboo Slang, originated from RAWR; meaning to roar, but also interpreted as something between a yawn and a roar. A lion lets out a big Rawn to say hi. Rawn by Abyssal Burt October 21, 2010 0 0 Get merch Get the Rawn mug. Buy Now — $32.95 See more merch