The term 'long sandwiches' refers to two types of sandwiches: SUBS and heroes. SUBS, also known as submarines, are long sandwiches filled with various meats, cheeses, and vegetables. Heroes, also known as hoagies, are similar to SUBS but are usually larger and contain more ingredients. Heroes can also be referred to as heroes or heroines. Both SUBS and heroes are popular lunchtime meals and can be found in many restaurants and delis.