club sandwich vs po' boy

club sandwich

noun
  • A type of sandwich, often served as a double-decker (with three slices of bread) and usually cut into quarters; traditionally made with turkey, bacon, lettuce, and tomato. 

po' boy

noun
  • A traditional submarine sandwich from Louisiana, typically consisting of meat or seafood, usually fried, served on a Louisiana baguette. 

How often have the words club sandwich and po' boy occurred in a corpus of books? (source: Google Ngram Viewer )