If you want to make up your own convoluted definition of atheist, perhaps you can perform the twists of logic necessary to explain worshiping Satan, a creation of the Abrahamic God, while simultaneously claiming Satan's creator doesn't exist. But it's certainly not going to win you any awards in Epistemology.

No dictionary definition of atheism is concordant with the above being a sensible claim. Also, by any normative definition of worship, I don't have to worship something, and I don;t do so.