Ok, what do you think about this:
A barbarian who talks at about Tarzan level, "Me Tarzan, you Jane." but every once in a while throws in a really complex word, "Krug exterminate tiny gob!" Maybe even more exaggerated, by using words that the other characters may have not even heard of, using it perfectly: "Krug extirpate tiny gob!", "Krug hit infinitesimal gob!" and the like.
I think it could be pulled off. Probably not by me, but it could be.
Do I actually have any readers? you can post comments, you know. And its about time that I post about something that isn't specifically D&D.