HIKAKIN is a major Japanese YouTube creator and beatboxer, and short shouting clips associated with him have circulated in meme culture for years. This particular sound is commonly labeled 発狂, a Japanese term used for a hysterical outburst or going crazy. Online, the clip spread through reposts, reaction edits and short-form videos where creators needed a sharp vocal burst for sudden chaos. It remains popular because the delivery is instantly recognizable and fills the same role as a scream meme or a quick bruh-style reaction.