As you probably know by now if you follow religious news at all, the Presbyterian Church (U.S.A.) has recommended new language regarding the Trinity, specifically referring to the three aspects as "Rock, Redeemer, Friend" or "Mother, Child, and Womb." Not surprisingly, a big bruhaha has developed over the desire to emasculate the Father and Son. You can find a .pdf of the original document here.
Joe Carter has an interesting post on the metaphor of the "Mother, Child, Womb" language that discusses it as a conceptual metaphor.
Aside from the doctrinal issues, I share the assessment of my colleague who, upon hearing the new Trinity language, simply remarked "Parallelism issues." Note to Presbyterian Church (U.S.A.): if you are going to try to come up with new names for the Father, Son, and Holy Spirit, at least try to come up with a triad that will pass freshman comp. I mean, not every use of language can be John's "In the beginning was Logos," but surely you can do better than this!
Update: I've been thinking about some of the triads, and while most of them are ridiculous, I rather like "Speaker, Word and Breath," because the last two can at least be justified by the Greek. I still find the desire to re-name God and emasculate Christ disturbing (especially since Jesus was, you know, male), and these impulses suggest, along with linguistic silliness, a problem with priorities.