The cuy, or guinea pig, is a beloved pet across Peru, Ecuador and Bolivia, and clips of their excited wheeking have long circulated on Spanish-speaking meme pages. This particular jajaja laugh, which sounds uncannily like a tiny person giggling, became a staple reaction audio in WhatsApp chats and TikTok edits, where its under-three-second length makes it perfect for punchlines. Nobody knows who first clipped it, but it belongs to the same family as the baby laughing meme and the cat laugh meme, which creators swap in for the same wholesome punchline effect.