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1.
One whom resides in Brooklyn, New York and makes his living on the street. He is seen as a 'baller' in his hood and gets rich from various street activities (hustlin').

Derivation: A combination of Brooklyn and Millionaire, Billionaire, and in the unlikely situation Trillionaire.
homeboy: yo beanie makes a ton of dough slangin rocks

homegirl: ya he's the richest nigga on my block

homeboy: ya he's a brooklynaire no doubt
by CeeGee21 January 03, 2011