I'd heard of this before. BBC video article here.
Interesting that the word "dingbatter" came from Archie Bunker when they got TV in 1972.
The story of Ocracoke Island, North Carolina is rich in tales of pirates, Native American fishing and English sailors, but one of its greatest legacies is a very unique dialect. Due to the island being isolated for centuries, their 'Hoi Toider' brogue sounds more like it's from South West England than the United States, though it is now facing a bleak future.
Interesting that the word "dingbatter" came from Archie Bunker when they got TV in 1972.