Refers to parking at a gas station pump with no intent to purchase gas. The pumps are easily accessible, and many times offer a island that protects the driver and it's occupants from the elements. Its name is derived from the godlike position of the parking spot, well, and born, meaning that it should have been born there. This frustrates gas station owners as they will be concerned that you are going to drive off without paying for your gas. This maneuver will attract special attention for sure.
Man, it's raining and I ain't got no umbrella; I'm gonna pull a wellborn.
Dog, they ain't got no parking spots anywhere! I'm gonna go wellborn on pump three.