This clip is associated with the fan-made If Undertale Was Realistic 4 animation, which ties it to the Undertale fandom rather than a mainstream film or TV source. Online, short angry voice lines like this spread because they are easy to trim into reaction edits, gaming clips, and meme compilations. Its staying power comes from the delivery: fast, rude, and exaggerated enough to be funny without needing much context. Creators still use it when they want a brief insult that lands immediately and keeps the pace moving.