Prosthetic Head by Green Day is a song that delves into the themes of disillusionment and the superficiality of modern life. As the final track on their album Nimrod, it reflects the band’s critical view on consumerism, fake personas, and societal expectations. The lyrics talk about the facades people maintain and the emptiness behind them, metaphorically comparing individuals to mannequins with prosthetic heads. Poignant moments include the chorus where the singer expresses frustration with the fake personas and the struggle for authenticity in an inauthentic world.