The clip comes from the Donald Duck cartoon The Vanishing Private, released on 25 September 1942, where this kind of exaggerated clang-and-buzz effect helped sell the physical comedy of the animation. It was later catalogued in the Hollywood Edge library as a metal clang bonk, which is how editors outside animation discovered it as a reusable effect. Online it circulates as a very short, punchy reaction sound for bonks, bumps and clumsy mishaps, and it endures because its cartoon logic is instantly clear even without any picture.
About this sound
A brief metallic clang followed by a springy cartoon woomp from the 1942 Donald Duck short The Vanishing Private, used for comic bonks and slapstick hits.
This is a split-second cartoon impact that opens with a bright, hollow metal clang, like a pot lid or helmet being struck, then drops into a low, buzzing bee-woomp that bends downward as if something has been squashed or knocked silly. The whole clip lasts well under a second, so it lands as a sharp punctuation mark rather than a sustained effect. On screen it makes a hit feel goofy instead of painful, turning a fall, a bonk on the head or a clumsy collision into a joke the audience instantly recognises as classic slapstick.