OBX or Outer Banks refers to a long chain of barrier islands off the coast of North Carolia. The chain of islands starts off the coast of Virginia and continues to South Caolina. Outer Banks was given the name "Outer Banx" by a few local t-shirt vendors which later came up with the classic white oval with black text OBX sticker. These stickers can be found on vehicles all along the east coast showing their love for the beautiful Outer Banks of North Carolina. Stores like OBXstore.com carry various OBX items like shirts, hast and stickers.
Jim: I am traveling to the OBX this weekend with my family and I can't wait!
Susan: What's O-B-X?
Jim: Outer Banks, it's in North Carolina on the coast!