With no single identifiable source, this kind of extended laugh has become a staple of online comedy editing, where a long laugh does the work of a laugh track without needing a studio audience. It is commonly dropped into memes, reaction videos and short-form clips to signal that a moment is funny, awkward or absurd, and its length makes it easy to cut under a visual punchline. Because laughter is instantly recognisable across languages, it keeps being reused whenever creators want a simple, human reaction that needs no explanation.