In Hopi, the expression ka-Hopi means “un-Hopi.” It describes, not non-Hopi (who, after all, cannot rightfully be expected to act like Hopi), but rather fellow Hopi whose actions lie outside the Hopi way.
It is not a compliment.
Similarly, among the Kalasha, the last remaining pagans of the Hindu Kush, the phrase sau Kalasha, “completely Kalasha,” describes someone who embodies the Old Ways in their entirety.
It is the highest praise one can offer.
In the absence of a universal definition or central authority to decide paganness, pagan identity is largely a matter of individual determination, and I (for the most part) am willing to take people at their word. Who, after all, better knows the truth of your heart than you do? Certainly not me.