The lolololololo clip comes from the long internet tradition of typing lol over and over to show you are laughing hard, stretched into an actual vocal performance. As short form video and soundboards grew, creators began using extended laughing audio instead of text to sell a reaction instantly. It spread through meme edits, gaming highlights and reaction compilations where a normal chuckle felt too small. It remains popular because it needs no context, works in any language, and signals extreme amusement in under ten seconds.