The effect comes from Early to Bed, a Donald Duck cartoon released in 1941, where such exaggerated tumbles were part of Disney's slapstick sound design. Hollywood Edge later catalogued it as a fall-and-tumble whistle with impacts, preserving it for cartoon, film and television editors long after the original short. As classic cartoon effects moved onto soundboards and meme edits, this brief whistle became a handy shorthand for a clumsy slip, much like a classic fail sound, because listeners recognise the falling whistle instantly even without seeing the character fall.