The falling whistle has long been a staple of cartoon and slapstick sound design, where a descending tone was used to sell the speed and height of a fall before a crash. Because the cue is instantly understood without any dialogue, it moved naturally into online video, gaming clips and meme edits, where creators use it for failed jumps, dropped items and exaggerated tumbles. Its simplicity is why it endures: one descending pitch tells the whole story in seconds, making it a reliable shorthand for disaster, embarrassment and comic timing.