The so sigma phrase grew out of online slang celebrating exaggerated confidence, and short song versions like this one spread through meme edits and short-form videos where creators reuse the same joke to label a character or moment as impossibly cool. Because the clip is only about eighteen seconds long, it fits neatly over introductions, transitions and reaction shots without needing much editing. Its continued use comes from that flexibility: the same few seconds can praise, mock or ironically hype almost any subject, keeping the joke recognisable across different creators and formats.