The line comes from Dr. Phil, the long-running American daytime talk show hosted by psychologist Dr. Phil McGraw, where he regularly questioned guests about their decisions. The blunt question became one of his most recognisable phrases and was clipped and shared as a reaction sound on soundboards and social media, where creators could drop it onto unrelated videos. Its staying power comes from its versatility: it needs no context to make sense, and it instantly turns any foolish moment into something worth questioning.