Refers to certain residents of the borough of Brooklyn, NY that are convinced that the entire world revolves around Brooklyn. They are resentful that the majority of the world thinks specifically of Manhattan when the acronym 'NYC' is mentioned. They are Nazi-like in their narrow-minded insistence that Brooklyn is superior to Manhattan (and the other NYC boroughs) in every conceivable way.
Jen is such a Brooklynista! She declined to come to my party in Manhattan, claiming she didn't want to her Bohemian Brooklyn Holiness corrupted by the Yuppie scum that would be in attendance.