Samuel L. Jackson memes primarily stem from his legendary performance as Jules Winnfield in Quentin Tarantino’s 1994 film, Pulp Fiction. The most famous 'Say What Again' scene captured his intense delivery and iconic stare, becoming a staple of internet culture. Over the years, other roles from movies like Snakes on a Plane and the Marvel Cinematic Universe have also been meme-ified, often highlighting his signature use of the word 'motherf***er' and his authoritative presence. These memes are used to express intimidation, disbelief, or to silence someone during a heated online debate.