The line comes from Moonstruck, the 1987 romantic comedy starring Cher as Loretta Castorini and Nicolas Cage as Ronny Cammareri. In the film's best-known scene, Loretta slaps Ronny and tells him to snap out of it after he makes a melodramatic confession, turning frustration into an instantly quotable punchline. Clipped and shared online, it became a go-to reaction for calling out delusion, drama, or wishful thinking, and it remains popular because the delivery is short, clear, and universally understood.