The 'But It Was Me, Dio!' (known in Japanese as Kono Dio Da!) meme originates from the 1987 manga and subsequent 2012 anime series JoJo's Bizarre Adventure: Phantom Blood. In the iconic scene, the villainous Dio Brando steals Erina Pendleton’s first kiss to spite his rival, Jonathan Joestar. He immediately boasts about the act, pointing to himself and shouting the phrase. The moment became an internet sensation due to Dio's over-the-top expression and dramatic delivery. It is now widely used as a bait-and-switch trope where an expected outcome is suddenly replaced by Dio, making it one of the most enduring memes in anime history.