Green’s Dictionary of Slang

(US) anti-white discrimination by blacks; thus crow jimism, guilt-induced affection for and fascination with blacks by white liberals.

1956		in Tamony Americanisms (S.F.) No. 20 9: A form of racial bias known in the trade as ‘Crow Jim.’.
1960, 1975		Wentworth & Flexner DAS 131/2: Crow Jimism A strong psychological attraction to Negroes.
1961		Rigney & Smith Real Bohemia 51: The sexual relationships are almost exclusively between Negro men and Caucasian women. (This reversal has been called ‘Crow-Jimism’).
1971		Harper’s Mag. Jan. 36: Blacks bullied whites, the smell of Crow Jim was in the air.