Lei-un Share definition Flag A chick who's around a dudes neck trying to choke him out via social media while being snakey and shady. A chick who's layed em all. Cody's been tripping over realized his enemy been lei-un around his neck. Lei-un by LeiairaRaine June 20, 2020 0 0 Get merch Get the Lei-un mug. Buy Now — $32.95 See more merch