The 'We Don't Do That Here' meme originates from the 2018 Marvel Studios film Avengers: Infinity War. During a scene in Wakanda, Bruce Banner attempts to bow to King T'Challa (played by Chadwick Boseman), only to be gently corrected by the King with the now-immortal phrase. The meme became a viral sensation shortly after the film's release, used to represent a polite but firm rejection of certain behaviors, social norms, or weird suggestions within specific subcultures. It serves as the ultimate 'gentleman's shutdown' and remains one of the most recognizable and versatile reaction images from the Marvel Cinematic Universe.