This clip is associated with Natsuiro Matsuri, a popular VTuber from Hololive, and it spread through anime and VTuber meme circles as a fast reaction sound. Fans use it for exaggerated anger, playful hostility and chaotic punchlines in short edits. Its appeal comes from the intense delivery and the instantly recognizable Matsuri voice, which makes even a tiny clip memorable. Outside VTuber fandom, it is often used the same way as a scream meme when a video needs a sudden burst of loud frustration.