xiankai Share definition Flag An optimistic guy who's all goofy. Oftenly tall and smart, and everybody likes talking to him. Omg it's XianKai! Let's go talk to him! XianKai, you're always so optimistic xiankai by iloveapplestheyregood October 25, 2022 0 0 Get merch Get the xiankai mug. Buy Now — $32.95 See more merch