Staten Island, New York
"SINY N What" - Inspectah Deck

"Yo man i'm comin straight outta SINY"
by Mr. Mef August 10, 2008
Top Definition
stands for "Staten Island New-York"
S.I.N.Y. Killa Hills 10304 - Method Man
by NQCLOTHING March 21, 2007
an object that is silver and shiny
look at those rims, they're so siny
by G-Ro October 16, 2007
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