The 'Is This Your King?' meme originates from the 2018 Marvel Cinematic Universe film Black Panther, specifically during the intense ritual combat scene where Erik Killmonger (Michael B. Jordan) defeats T’Challa. After throwing his opponent over a waterfall, Killmonger shouts the line to the stunned Wakandan audience to mock their devotion to a defeated leader. In internet culture, the template is used to call out hypocrisy, highlight the failure of a highly-praised figure, or mock sports teams and fans after a major loss. It serves as the ultimate expression of aggressive disbelief when a perceived 'champion' fails to deliver.