WhatsApp grew into one of the most widely used messaging apps in the world, and its short iPhone alert became a sound people recognise without even looking at their phone. As short-form video and meme editing took off, creators began lifting the tone for pranks, skits and reaction videos because it instantly suggests a new message has arrived. That instant recognition is why it has stayed popular online: it needs no explanation, works in almost any everyday scenario, and can turn a simple phone check into a punchline.