That dipthong is a survival of the Scottish brogue, from the widespread Scots-Irish settlers. You can always tell when you’re in an old Scots-Irish settlement area, as opposed to an English one or a German one, by the way they say certain words. “Home” sounds like “haume.” “Show” sounds like “shaue,” etcetera. The funniest one is “hauez pahp.” Can you guess the meaning, lol?
Hush puppy?
Hose pipe.