Wiktionary
nigger lover
n. (context derogatory taboo ethnic slur English) Someone who likes or tolerates negroes, especially a white person seen as weak.
Usage examples of "nigger lover".
Well, we'll see how dumb I am, Annie old girl, when they arrest your nigger lover for killing.
And being that we're on that subject, little Miss Nigger Lover, I might as well tell you the whole truth about them now.
For some reason the discussion seemed to end there with someone throwing a punch in the cause of Irish womanhood, honest labor and killing the dirty nigger lover.