The line comes from Quentin Tarantino's 1994 film Pulp Fiction, during Jules Winnfield's apartment interrogation scene with Brett. Samuel L. Jackson's escalating delivery turned a simple demand to repeat a word into one of the movie's most quoted moments. Clips circulated for years on forums, YouTube edits and soundboards, and the phrase became shorthand online for calling someone's bluff. Its mix of movie nostalgia and over-the-top menace keeps it popular for reaction posts and parody confrontations long after the film's release.