A sex position in which there is one white man in the middle of two black men. Other variations are the Double Stuf Oreo with two white men in between two black men, the Uh-Oh! Oreo with one black man in between two white men, and the Vanilla Oreo, which is just a threesome with three white men. This can describe gangbang sex or a hump train.
That oreo that I saw last night was amazing. Those two black guys just kept plowing the white guy until they all came.
A white woman (generally loving the bbc) gets penetrated on both sides by two black males, creating an oreo. Often times the the two black males feel each others unit rubbing against the other mans unit.
"O shit man i justsaw Ima, Caroline, and Gavin oreo-in it up in Stuf."