The Rock's Name as a Kid Was Dewey

The rock's nickname as a kid was Dewey. Is it like Huey, Dewey and Louie kind of thing? Or is it the Dewey Decimal system? He's spent all the time in the library as a kid. Do you know that he has a degree in criminology? None of you knew that. Back to proper rock's voice. We now know it's clay. But you might not have thought that, right? It's like sand feels so fine.