A person (usually in their 20s) that moves from suburban/ rural America to any major city. Generally, these people are running away from or ashamed of their pasts and seeking to fruitlessly reinvent themselves and adhere to every possible perceived "trendy urban" stereotype ( e.g. In NYC, dressed head-to-toe in black, toting a "Manhattan Portage" bag, expensive sunglasses, etc.) making them extremely easy to spot. The phony "city" act is most obnoxious when the "transplant" has friends from their hometown visiting or they are back in their real hometown visiting.
The transplants look to live near busy avenues that offer some sort of social scene, bars, cafes, restaurants, etc.
(n.) any non-native ending up in another market yet roots for original home teams from established sense of transplant.
Bob is a Tampa transplant, he still roots for the Devil Rays.