Usual theological vocabulary for the day

Some of the Church Fathers really knew how to insult, calling people 'mad', 'beasts' etc. I sometimes wonder, in our fuss to be 'nice', if this is an art we have lost. Hence I introduce a new blog series of useful theological vocabulary, especially aimed for undergraduates to swell their lexis for the years of study that follow. So to the first:

Wackjob

Can play a very useful descriptive function in certain contexts.

Example setence:

Just the other day, a ‘friend’ told me of a lovely discussion page where one fundamentalist chap had decided to caution the author of the blog for quoting C S. Lewis, ‘for he is not a Christian’, and all because Lewis didn’t fit his own wackjob frigging messed up pile of theological wackiness.