kink, n.¹ — Green’s Dictionary of Slang

kink n.¹

[typically ‘kinky’ black hair]

(US) a derog. term for a black person.

1865		implied in come the kink
1944		Mencken ‘Designations for Colored Folk’ in AS XIX:3 173: Kink shows an obvious allusion to the Negro’s hair.

come the kink (v.)

to steal a black slave from the country, and dispose of them in town.

1865

J.H. Browne Four Years in Secessia 288: ‘Coming the kink’ was to steal a negro from the country, and dispose of him in town .