Bonestorm comes from Lord Marrowgar, the first boss of the Icecrown Citadel raid in World of Warcraft: Wrath of the Lich King. When Marrowgar uses the ability, he spins rapidly around the arena, damaging nearby players and forcing the raid to spread out and survive the onslaught. The shouted ability name became a memorable part of the encounter because it gave players an unmistakable audio cue that danger was coming. Years later, WoW players still quote and reuse it in edits, streams and memes as shorthand for a sudden, unstoppable whirlwind of chaos.