Right. Flaperons = Flap, ailerons. Where exactly does elevator enter into it.
What you're describing should be referred to as Flapevator, because Elevon is already used.

By the way, Flaperons have been around a long time, long before anyone wanted to do 3D.

Now as a caveat, we often times mix some elevator in with our flaps to prevent the plane from "ballooning" when flaps are applied. But as has been mentioned, Flap to Elevator mixing is completely separate from the Flaperon function.
Dennis-