The laugh comes from Bellboy Donald, a Donald Duck cartoon released in 1942, where the small, mischievous laugh fits a character enjoying a sly moment. It later entered the Hollywood Edge sound library as a catalogued effect for a little man or kid laughing rapidly, which helped it travel far beyond its original cartoon. Editors now reuse it as a compact shorthand for sneaky delight, because a fraction of a second is enough to signal that a character is up to no good.
About this sound
A rapid, high-pitched evil laugh from a small character in the 1942 Donald Duck cartoon Bellboy Donald, used for mischievous villains and prank reveals.
This is a very short, rapid laugh from a little character who sounds delighted by his own mischief, with a high, slightly raspy giggle that rises and tumbles over itself in less than half a second. It does not sound like a big villain booming from a throne; it sounds small, sneaky and gleefully unhinged, which is exactly why it lands so well. Dropped at the moment a trick is revealed or a plan clicks into place, it instantly tells the viewer that something cheeky has just happened and that the character behind it is enjoying it far too much.