The line comes from The Big Lebowski, the 1998 film by Joel and Ethan Coen, where Walter Sobchak, played by John Goodman, refuses to bowl on Saturday because it is Shabbos, the Jewish day of rest. The line is now used in clips, memes and reaction edits that borrow Walter's refusal for weekend jokes. It endures because the refusal is instantly recognisable, easy to place over weekend plans, and funny even without the full scene, giving creators a compact way to say no with character.