Does he have a skateboard? If so, maybe some cool wheels or bearings? Figure out what kinda wheels he uses first though. There are different types that are good for different situations.
Edit: I'm not super into skateboarding, but if I'm not mistaken, Bones bearings are generally seen as some of the best you can get.
See, those would be better terms to use. It wouldn't fit the acronym, but they'd be more precise and not imply that chunky people are easily grifted.