The clip has no documented source; it arrived on the soundboard as a user upload with a keyboard-mash filename, so its creator and recording date are unknown. The 'nya' sound is the classic Japanese-style cat meow popularised across anime and internet meme culture, which is why the chant feels instantly familiar even to first-time listeners. Without a film, show or game to trace it to, it survives purely as a piece of meme vocabulary, passed around by creators who want a cute, high-energy vocal stamp for short videos.