Oreo cookie

oreo cookie, derogatory term from the 1960s, from the trade name for the cookies consisting of two chocolate biscuits sandwiching a white creamy center. Oreo is used for a black person — black on the outside white on the inside.

other subtypes (Uncle Tom, Oreo cookie) might be salient in other contexts.

You don't have to be like an Oreo cookie, brother

Jake and I did not know if it was going to be a white guy or a black guy, and I kind of think it might have turned out, to be a white guy. Jake, I think maybe we just completed the ole Oreo cookie thing! Don't you?”