Shut the Fuck Up Friday was popularized by the Pot Brothers at Law, a California-based law firm that released viral videos advising citizens on their 5th Amendment rights during police interactions. The advice is simple: when questioned by law enforcement, stay silent. The phrase evolved from a serious legal tip into a widespread internet meme used every Friday to remind people to stay out of trouble or to jokingly tell others to stop talking. It represents a blend of genuine civil rights education and aggressive internet humor, making it a staple of social media culture every week.