The sound comes from Spanish comedian Juan Joya Borja, better known online as El Risitas, during a television interview clip that later spread widely on YouTube and meme pages. It became especially popular through subtitle memes that replaced the original context with absurd stories about games, tech or workplace disasters. The laugh remains a staple reaction sound because it is instantly recognizable, easy to loop, and carries the same viral energy as Trololo in older internet humor.