The line comes from The Big Lebowski, the 1998 Coen brothers film starring Jeff Bridges as Jeffrey Lebowski, known as The Dude, a laid-back bowler drawn into a mistaken-identity mix-up. In the scene, The Dude calmly answers a heated accusation with the dismissive reply, and the moment became one of the film's most quoted exchanges. As the film gained a lasting cult following, the line spread through memes, reaction videos, and soundboards, where its relaxed tone makes it an easy shorthand for brushing off an opinion without starting a real argument.