This sound is associated with the King character from Supercell's mobile game Clash Royale, released in 2016. The laugh became especially recognizable through emotes, gameplay clips and short meme edits shared on TikTok, YouTube and Discord. It spread beyond the game because the delivery is instantly readable as a troll or victory taunt. It is still popular in reaction edits and gaming memes for the same reason clips like bruh and goofy ahh sounds keep circulating: they communicate the joke in a second.