according to the Penguin Dictionary of Psychology, embolalia (only two els) is simply "meaningless babbling". it would seem that someone borrowed this pathological term for other use; the "skb" wordlist, which can be found online, gives this looong and authoritative looking entry: "embolalia (n.) - the use of virtually meaningless filler words, phrases, or stammerings (or so-called hesitation-forms) in speech, whether as unconscious utterings while arranging one's thoughts or as a vacuous, inexpressive mannerism (W)" I'll have to ask him what his "W" source is, as I can't find his key [much of the skb list comes from Mrs. Byrne's Dictionary of Unusual, Obscure, and Preposterous Words, but not this one]
and, as long as I'm being expansive, here are some other interesting -lalias:
coprolalia - the uncontrollable use of obscene language
echolalia - the often pathological repetition of what is said by other people as if echoing them
glossolalia - speaking in tongues
