The Patrick Bateman Walking meme originates from the 2000 cult classic film American Psycho, starring Christian Bale as the wealthy investment banker and serial killer Patrick Bateman. The specific scene features Bateman strutting through his office while listening to 'Walking on Sunshine' on his Walkman, completely oblivious or indifferent to his surroundings. While the film has been a source of memes for years, this template saw a massive resurgence in the early 2020s as a cornerstone of the 'Sigma Male' subculture. It is commonly used to depict someone who is intensely focused, detached from social norms, or confidently entering a stressful environment while maintaining a stoic facade.