1. [1910s+] (orig. US) a black person, esp. West Indian or African.
2. an Indian.
(US) the black area of a town or city.
(US gay) a respected black homosexual.
SE in slang uses
[1980s] (S.Afr. campus) flirtation.
[1910s+] to speak aggressively or vehemently.
[1920s+] (orig. US) to the greatest extent, very much, extremely, any form of intensifier; thus you can say that in spades, you couldn’t be more right.