Top Definition
A (somewhat racist) term used by white people when they want to access information on an african-american by way of another african-american friend. Said whities usually blindly assume the friend knows all black people.
Whitie 1: What is Monique's number?
Whitie 2: I don't know, let me access my negrodex *calls random black friend*.
by maxgm4 March 21, 2010
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