I too could use an example of Christianese. I THINK I get it but I'm not sure.
Phrases along the lines of "the Fruit", "the Spirit", "the Lamb", "the Word", "Born Again", you know, really overspiritualized jargon like that. I decided long ago that if I'm going to be a Christian, I could never talk even remotely like that - I'd feel like a douchebag.