Definition & Meaning of "po'boy"in English

What does "po' boy" mean in Louisiana slang?

It is used in Louisiana, especially New Orleans, to describe a sandwich served on French bread, typically filled with fried seafood (shrimp, oysters, catfish), roast beef with gravy, or other meats, often dressed with lettuce, tomato, pickles, and mayonnaise. People typically say "I'll take a shrimp po' boy" or "That roast beef po' boy is messy but amazing." The term originated in New Orleans during the 1929 streetcar strike, when former streetcar drivers (poor boys) were fed free sandwiches by a restaurant owner, and the name stuck, becoming an iconic Louisiana food term.