This quote is best known from Home Alone (1990), where Kevin McCallister watches the fake black-and-white gangster film Angels with Filthy Souls. The line became one of the most remembered Christmas movie quotes and spread far beyond the film through TV reruns, memes and holiday posts. It still shows up every December because it instantly signals Christmas nostalgia while also working as a playful insult. Online, it is often used in the same reaction-heavy way as The Simpsons - Nelson's HA-HA! for comedic timing.