Poof sounds have long been a staple of cartoons, stage magic and comedy sketches, where a quick burst of air signals that something has appeared, disappeared or changed in an instant. Online, the effect travelled from animation and video editing libraries into short-form video, memes and gameplay clips, where creators use it to punctuate jokes, pranks and reveals without needing dialogue. Adding an echo stretches that moment, giving editors a ready-made transition that feels airy and slightly exaggerated. Its simplicity is part of its staying power, since it reads instantly even on a phone speaker.