The clip comes from The Vanishing Private, a Donald Duck cartoon released in 1942, where the sound was used as a small vocal detail in the animation. It later circulated as part of the Hollywood Edge sound effects library, which preserved many classic cartoon vocal sounds for reuse in film, television, and online video. Because the noise is brief, wordless, and easy to recognise, editors have kept using it as a shorthand for awkwardness and nervous authority, long after the original cartoon stopped being widely shown.