Supreme Calamitas is the ultimate superboss of the Calamity Mod, a long-running fan-made expansion for Terraria. Her mocking laugh plays during her brutal bullet-hell fight, usually when she taunts the player before launching another devastating attack. Clips of her battle became fixtures in Terraria gameplay videos and boss ranking content, and the laugh traveled with them. Today it circulates online as a standalone villain sound, alongside other dramatic boss audio like the FNAF jumpscare scream.