Definition of niggas:
(n) :
(slang, often offensive, but tolerated in African-American Vernacular) A black person (usually a male friend), especially an African American.
(n) :
(slang, often offensive, but also often used affectionately in African-American Vernacular) A close and loyal friend.
(n) :
(slang, often offensive, chiefly African-American Vernacular) Any person, though chiefly male.
(n) :
(slang, often offensive, but tolerated in African-American Vernacular) A male, especially an adult one, as opposed to a female.
(n) :
A type of acrographic lexical list included in Old Babylonian scribal curriculum.
(n) :
(offensive, ethnic slur, dated) Pronunciation spelling of nigger. [(offensive, ethnic slur, vulgar, see usage notes) A black person; a person of black African descent.]