Unlike a viral meme clip, this sound comes from the world of stock sound effects, where short drinking noises are recorded for films, adverts and online videos. The straw slurp is a familiar everyday noise, so creators reuse it whenever they need to sell thirst, impatience or a joke about finishing a drink. It has spread through short-form video and soundboard collections because it needs no explanation: listeners instantly picture an empty cup. That instant recognition keeps it useful for editors long after trendier sounds fade.