fluttertwat Share definition Flag a woman's vagina, that has extremly long lips that look like they could fly a kite. used as an insult. "FUCK YOU! YOU FUCKING FLUTTERTWAT!" fluttertwat by kynukka for life October 17, 2008 0 0 Get merch Get the fluttertwat mug. Buy Now — $32.95 See more merch