The cartoon spring sound is a stock-style slapstick effect that has circulated for years in comedy edits, reaction clips, and animated video memes. Rather than being tied to one famous quote or character, it is recognized as a general-purpose boing used to sell bounce, recoil, and elastic motion. It remains popular because the sound is instantly readable and very short, making it easy to drop into fast edits. It is often used alongside effects like cartoon slip when creators build a classic animated gag.