The 'Headless Mami' meme originates from the groundbreaking 2011 anime series Puella Magi Madoka Magica. In the third episode, the veteran magical girl Mami Tomoe is suddenly and brutally decapitated by the witch Charlotte, subverting the upbeat expectations of the magical girl genre. This shocking twist became an instant internet sensation, spawning the term 'Mami-ed' to describe characters who suffer sudden, violent ends. Online, the meme is used to mock overconfidence or to make dark puns about losing one's head, serving as a staple of anime community humor for over a decade.