Neil sent in LYKMBIG (Like 'm big). Also note, this plate is on a Hummer, one of the largest vehicles known to man. He writes:
I don't even want to try guessing at the meaning of this plate. I am sending it because I assume you will have a chapter in your Horrible License Plates Coffee Table Book dedicated to Hummers. I also assume you will have a Horrible License Plates Coffee Table Book.
Chapter? Pssht. I could write a whole book on Hummer vanity plates. It would be called: Hummers: Sorry About Your Tiny Pee-Pee.