Illeist:

The (I hope temporary) habits of my 1.5-year-old remind me of one of my favorite words: "Illeist," which means "someone who refers to himself in the third person."

OK, it's not "favorite" in that I actually use it in conversation, since its obscurity makes it incapable of serving the basic function of a word (effective communication). But I still like to talk about it.