This is a generic stock-style laughing sound rather than a line from a specific film, show or character, which is why it appears so widely across short-form video and meme edits. Creators on platforms such as TikTok and YouTube Shorts use the boy's high laugh as a quick audio cue for amusement, dropping it into prank compilations, fail videos and reaction clips where a spoken joke would slow the edit down. Because the laugh is instantly recognisable as genuine delight, it keeps working as a simple punchline enhancer.