Dolphin vocalisations have long been shared online as a laughing sound because their fast clicks, squeals, and chattering bursts resemble human giggling when edited into a short loop. Clips like this spread through meme pages, reaction videos, and soundboards, where creators reuse the same exaggerated laugh as a punchline for animals, babies, and cartoon characters. Its appeal is simple and durable: it is instantly recognisable, family friendly, and funny even without context, so it keeps returning whenever a creator needs a light, mocking laugh that is not a human voice.