...and tapping his fingers to voices and beats only he hears. "Yeah, yeah, Eminem," Douglas-Martin said. "Marshall Mathers, M.M., and me, Matthew Martin, M.M. I am always thinking new raps. I am always thinking. It just never...

...now you're probably asking yourself, "What the...?" Let me explain. "Eminem" is the nom de plume of one Marshall Mathers (two "m's," get it?) and hearkens back as well to a bit of brightly colored candy. (Note that the sobriquet...