“Animal Style” is a popular secret menu option at In-N-Out Burger, a fast-food chain known for its burgers and fries. This style includes a burger topped with extra pickles, grilled onions, and a special sauce, which adds a unique flavor to the meal. In addition to the burger, “Animal Style” can also be applied to In-N-Out's fries. When ordered this way, the fries are smothered in cheese, grilled onions, and the special sauce, creating a delicious and indulgent side dish. This option is favored by many fans of the restaurant for its rich taste.