We call them Robisms. When he was a little guy, he would pronounce hamburger – handgabur; animal – aminal; finger – thinger (he still does this sometimes).
When he can’t settle down he’ll often say that he “hasn’t run out of gas”.
On the day before the first day of school when he couldn’t sleep he said “all my parts haven’t gone away”
I love the way a childs mind works. If you listen you will understand.