kyusai Share definition Flag The ultimate scum of the Earth. A pacifist, but also a serial killer. Person A: What kind of girl are you? Cute, memey, edgelord Person B: Kyusai Person A: wait that’s not possible! kyusai by Meivo July 14, 2019 0 0 Get merch Get the kyusai mug. Buy Now — $32.95 See more merch