The boing sound effect comes from the broader tradition of cartoon audio used to exaggerate motion, elasticity, and comic timing. Rather than pointing to one definitive modern source, people usually know it as a stock comedic effect that spread through video editing, soundboards, and meme culture. It remains popular because the sound communicates bounce and silliness in less than two seconds. In online edits, it often fills a similar role to the vine boom sound, but with a lighter and more playful tone.