OBX
Shirt for 'The Outer Banks' an up-and-coming vacation spot on the coast of North Carolina.  Usually flooded with tourists during the summer months, owners tend to flock there during the spring and fall months.  Includes the snobbish Dare County and pretentious Pine Island.
When Mitzi was speaking about her slammin' summer rental in the Hamptons, Muffy chimed in and said, "Well I totally went to the OBX, it's the new Montauk!"