Cause that's his nick name. Has been for as long as I've known about him as a pro, and that's about 4 years or more now. I remember back at my old gym there was a fight poster for one of his fights, just a local one at the DC Armory I think, and it had in parentheses next to his name "The Ding a Ling Man". I think that psoter was from like '02, at least. I think the story behind it is that when he hits you, you go ding a ling.
Yeah. But for now, let's just stick to the boxing explanation. Although I think someone said something to Ding about coming out to "My Ding a Ling" by Chuck Berry.