Top definition
N- New
Y- York
G- Gastroeontology
A- Agency

Also known as a mispelling of the slang term: nigga or nigger.
Person #1: HEY WHATS UP NYGA?
Person #2: I'm not a New York Gastroeontology Agency!! but anyway, hey. :P
by krazymonkey11 October 24, 2010
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