Yes he does.
blankie is still "geegee" or gee, Daddy is sometimes, dada, sometimes gaga, I'm only get mama when he's really upset and last night I think he was calling for me and he said gaga or geh geh.
That's about all I can think of but my 15 year old had a lot of strange words for things.
Here's just a few of our favorites: chips/bush, bugs/deads (that one was because I pointed to a dead bug in the pool so from then on, bugs were deads. LOL
And once we saw a kid from down the street ride by on his bike so I said, there's J.J. (that was his name) and from then on bikes of any kind were called J.J.'s. And cars were "hot bus".