His own language.

Our toddler is a big talker. For the most part the things he says are clear and understandable by most people around him. He does however have a few words that are his own creation and make up his own little language. For example he calls his pacifier a "nano". We have no idea where or why he decided this is what it should be called but he has consistently called it that for over a year. I suppose to a child in a world of products with names like "orovo" it isn't so far fetched to call a pacifier a "nano".