You're fucking someone in the ass while they're turtling and cum in the poop. When you pull out it will look like a friend Oreo because of the cum in between the poop.
I gave this bitch a fried Oreo last night in her ass.
Similar use to oreo when talking about an African American who acts Caucasian, but for Indian people.
A: Manish is the whitest Indian I know.
B: I know, he's basically a graham cracker oreo...