The sound comes from Lend a Paw, a Mickey Mouse cartoon released in 1941, where classic Disney animation relied on exaggerated, hand-crafted effects to sell every slip and tumble. It was later catalogued in the Hollywood Edge library as a flapping, bonk and crash effect, which helped it reach editors far beyond its original cartoon. Today it circulates on soundboards and in short videos as a quick shorthand for a wooden, slapstick fall, keeping a piece of early cartoon sound design in regular use.