A fork of Rural Dictionary
National Kokichi Ouma day, the day that the supreme leader prodigy popped. Quite literally.
P1: "Ayo bro, it's June 21: National Kokichi Ouma day." P2: "Oh. So THAT'S why I've been hearing 'Wow, Shuichi! Did you hear that? The robot's being sassy with me!' all day!"