Photo: Heartbreak Ridge on Flickr If you visit New Orleans or the Gulf Coast, there’s a strong chance you’re going to run into a po boy. If you’ve never sunk your teeth into this delightful combination of crunchy bread and crisp seafood, here’s your education. Like so many types of cuisine, there’s debate over who first coined the term “po boy” for the submarine style sandwich. Experts seem to think it originated in the early 1900s. As the story goes, New Orleans restaurant owners Benny and Clovis Martin (former streetcar conductors) gave out sandwiches to streetcar workers during a 4-month…