"A po' boy (also po-boy, po boy derived from the non-rhotic southern accents often heard in the region, or poor boy) is a sandwich originally from Louisiana. It traditionally consists of meat, which is usually roast beef, ham, or fried seafood such as shrimp, crawfish, fish, oysters, or crab. The meat is served in New Orleans French bread, known for its crisp crust and fluffy center."

It's delicious is all I know