Siren sounds like this have been a staple of prank soundboards and French bruitage libraries for years, shared simply as alarm effects with no single film or show behind them. The clip spread because it is instantly understood in any language, no dialogue needed, and works on phone speakers. Online, creators pair it with flashing red lights, fake warnings and other alarm clips like a smoke detector beep or a looping fire alarm to build a fake emergency. Its short length makes it easy to reuse in memes, streams and short form videos today.