1. Someone who says something about reading a book, resulting in him being a complete nerd and ultimately a Bookworm Johnson.
2. One who pours over numerous tomes with great frequency. (<-omg what a Bookworm Johnson!)
Person 1: "Yeah, I read a few pages of it the other day."
Person 2: "Oh my god you are probably the biggest Bookworm Johnson I have ever met in my entire life!"