Yarnaby is a monster from the horror game Poppy Playtime, introduced in Chapter 4 as a lion-like creature that stalks the player through dark areas. Clips of its scream began circulating as a scream meme in short horror edits, gameplay highlights and TikTok-style reaction videos, where the raw, animal-like sound stood out from cleaner stock screams. Because it is instantly recognisable to fans of the game and still startling to everyone else, creators keep reusing it for jump scares, fails and exaggerated panic moments.