When a young Black man doesn't like to associate with other Black people and would never go out with a Black girl. He behaves like a White person, has White friends, always dates White women. For all intents and purposes is Black on the outside, but White on the inside.
"Holden would never date a Black girl. He prefers White girls."
"I know, he's a total Oreo cookie."
A threesome in which a white woman is getting simultaneously screwed in her pussy and indabutt by two black men.
See also oreo'd.
After helping their university win the basketball game, Terrell and Jaquan made off with a very hot white blonde cheerleader bitch from the losing university's team, took her into the men's locker room, and made an oreo cookie out of her.
Mark H. UrbanDictionary contributer since February 2004.