The sound is tied to Quentin Tarantino's Kill Bill films, which began with Volume 1 in 2003 and became known for their stylised, high-impact sound design. Clips of the siren were lifted by editors and shared on YouTube, TikTok and meme soundboards, where it became shorthand for incoming trouble. Its simple two-tone pattern makes it instantly recognisable even out of context, so creators still reach for it when they want a dramatic warning without explaining the joke.