The sound comes from Invincible, the adult animated superhero series that premiered on Amazon Prime Video in 2021 and is based on Robert Kirkman's comic of the same name. In each episode the title appears after the opening scene, often following a violent or surprising turn, and editors soon lifted that moment for short videos. On TikTok and YouTube it became a shorthand cut for a plot twist or a bad decision, because viewers instantly recognise the cue. Its popularity has lasted because the sting works even without any knowledge of the show.