A hoagie is a type of sandwich that originated in the United States, particularly associated with the Philadelphia area. It typically consists of a long roll filled with various ingredients, including meats, cheeses, vegetables, and condiments. Common fillings include salami, ham, turkey, and provolone cheese, often accompanied by lettuce, tomatoes, onions, and peppers. The name "hoagie" is believed to come from the term "Hog Island," where Italian immigrants would make these sandwiches. Hoagies are similar to other regional sandwiches, such as the submarine sandwich and hero, but they have their own unique preparation and flavor profile.