Fleenie Share definition Flag Fleenie, Flesh-Beanie. Another word for a bald person, as it looks like they are wearing a beanie made out of flesh. Wow Malcom, check out that Guy he's got a Fleenie. Fleenie by Fleenie hater June 29, 2010 0 0 Get merch Get the Fleenie mug. Buy Now — $32.95 See more merch