From Wiktionary, the free dictionary
From black + assed.
blackassed (not comparable)
- (derogatory, vulgar, US, offensive) African-American; black.
1996 October 16, Aryan, “Racist horseshit”, in uk.legal[1] (Usenet), retrieved 2022-04-24:but ince by ince we takin' hold
like when the white bread starts to mold...
i'll overrun
yo home and soon...
DEY BE ONLY FIT FO DE BLACKASSED COON"
2001 August 17, xganon, “Monica is Queen Nigger”, in alt.tv.big-brother[2] (Usenet), retrieved 2022-04-24:That Blackassed Crack Whore is just stinking up the house with her monkey stank and greasy brillo pad hairdo.
2013 February 7, Bobby J. White, “The Obama Creed”, in sac.politics[3] (Usenet), retrieved 2022-04-24:But inch by inch we takin' hold, like when de white bread starts to mold...
We'll overrun yo homes and soon...
Dey only be fit fo de blackassed coon."
2016 May 31, Colonel Edmund J. Burke, “Re: GATOR "MACKIN' DOWN" ON HUMAN CORPSE”, in uk.rec.sheds[4] (Usenet), retrieved 2022-04-24:The real question is niggas human?
Blackassed nigga mofo!