partially derived from the word "knocker", and almost acts as a possible subsitution for "nigger" but takes on a unique meaning that can only be understood by a "naca" himself
1. a real good buddy, or friend, who never lets you down.
2. a member of a tight group of friends that play it cool, and always know how to make things interesting.
1. Joe is my naca.
2. Whats up naca?
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