OK, I have no idea what these mean. Anya has been saying them for weeks now:
Usually said repeatedly in a clear, bell-like voice. Today she said me-ah-mee in a growly voice, playfully. I once thought that bee-ah-bee meant bellybutton, because about half the time she would laugh and point at her bellybutton while saying it, but I don't think there's a clear link.
Meanwhile, new words this week are:
bubble (learned thanks to bathtime hijinks)
And she continues to love saying stah (star), mooh (moon), bow-wow (dog), moh (more), pee/gee/dee (please), ta (thank you), and has started repeating words at random as we talk to her.