Big Kahuna Burger is a restaurant that serves hamburgers and other yummy treats. It is famous because it was mentioned in a movie called Pulp Fiction. In the movie, the characters talk about how delicious the burgers are, which makes people want to try them for themselves. Just like how you might want to try something your friends say is really good. So, Big Kahuna Burger is a restaurant that became extra popular because of a movie, and people love their mouth-watering burgers.