Jimmy MacDonald performed this vocal 'poit' for Disney's Pluto cartoon Pluto's Playmate, released in January 1941. MacDonald was Disney's master of cartoon voices and sound effects, famous for giving small actions a musical snap. The effect later circulated through Hollywood Edge's cartoon sound-effects libraries as a short vocal boink, bounce, and plunk. Editors rediscovered it as a clean, family-friendly pop for memes and short-form video. It survives because it is tiny, readable, and instantly cartoonish without needing any dialogue.