look up any word, like blumpkin:
 
1.
Human being of 1/8 african-american origin.
Damn yo skin be mad light? How you blaque?

I'm an octoroon.
by Bobby Gibson November 06, 2003
 
2.
a person having one-eighth black ancestry; the offspring of a quadroon and a white
"All the way up until 1986, my barracoon played home to a coffle of twelve: 3 quadroons, 3 octoroons, 2 pickanninies, 2 Mexicans, a mulatto, a chink, and a roan-colored Albanian hobo named Noodles. And I'll be goddammned if those weren't the best days of my life."
by Ronald T. McMurtry October 11, 2006
 
3.
Americans of mixed ancestry. Mixed European/African Americans who appear European. Many are considered Caucasian of European background, who are in fact of mixed European and African ancestry (albeit 2-3 generations past).
Rarely mistaken for "Spanish". Whom are clearly mixed with Spanish/African/Indian
"No one knew she was an Octoroon, Her Grandfather was half African".
Joan Bennett, Constance Bennett, Fredi Washington.
by P.Vought October 05, 2007