ofaginzy, n. — Green’s Dictionary of Slang

ofaginzy n.

[? ofay adj. + ginzo n.; note Cohen (ed.), Studies in Slang (1997) suggestions that if ofay = Fr. au fait, then ofaginzy = (c’est) au fait ainsi]

(US black) a white person.

1946		Mezzrow & Wolfe Really the Blues 204: Man [...] don’t nobody fault you for makin’ out you’s ofaginzy.
1964		S. Longstreet Golden Runaways 185: All you yard-dogs got no wig-trig how much a nigger feels he's the better man. Coming for the nympho-kick, you ofaginzy just ain't with it.