Werewolf howling draws on centuries of European folklore where loup-garou, the French term for a werewolf, was said to transform under a full moon and call into the night. The cry borrows from real wolf howls, which carry over long distances to locate pack members, but horror stories stretched it into a sign of a curse. Online, creators reuse the sound for Halloween posts, horror games, tabletop sessions and social deduction games like Werewolf, where a single howl can mark nightfall, accuse a player or set a spooky mood without any dialogue.