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1.
A Black person high on crack or smack,
Im so niggly fucked g dog im on some fucked niggly yo what im sayin g dawg what what what what what im hard cos i say what heaps!

Ahh man im so niggly fucked all day solid g WHAT
by Rather_confused March 23, 2011
 
2.
(vb) Not caring about someone or something.
"I don't give a niggly fuck if the knickerebockers win or lose."
by markbl June 17, 2011