The boing is one of the oldest cartoon effects, built around the twang of a spring or jaw harp and popularised by mid-century animation for jumps, bounces and elastic gags. This short version now circulates on soundboards and in meme edits, where creators drop it over gameplay, pets and real-life slips. It sits in the same playful toolkit as the Mario Jump sound, but with a looser, wobblier tail that suits slower comic timing. Its familiarity is why it still lands instantly, even without any cartoon on screen.