The phrase identifies an establishment specializing in two distinct culinary offerings: pizza, a baked flatbread typically topped with tomato sauce and cheese, and submarine sandwiches (subs), elongated rolls filled with meats, cheeses, and various condiments. This combination caters to a broad customer base seeking both hot and cold meal options.
Such businesses benefit from appealing to diverse tastes and preferences within a single location. The pairing provides convenience, allowing customers to satisfy varying cravings within a group. Historically, these types of establishments often thrive in areas with high foot traffic, such as college towns or urban centers, due to their quick service and affordability.