Help! Curiosity is killing me!

OK. Somebody tell me what in the world an 'epologist' is. It's not in the dictionary but I've been seeing it on the blogs for a while, used instead of the word 'apologist' I believe.
Is it some sort of newly-coined derogatory term?

UPDATE: Here's a post on CARM that uses the word, and is also an interesting comment in itself by someone who became Catholic and then left the Catholic church.