n. a large sandwich on a long crusty roll that is split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the U. S., such as hero, grinder, and submarine.
Syn. -- bomber, grinder, hero, hero sandwich, hoagie, Cuban sandwich, Italian sandwich, poor boy, sub, submarine, submarine sandwich, torpedo, wedge, zep. [ WordNet 1.5 ]