Jerk-Of-Trade

Someone who is a professional at one thing, but sucks with everything else. Usually refers to athletes or some competitors that are at the top of their game, but can't seem to figure out how to not be shitty people.

So Shane "Shakey" Bryne is a helluva racer and won first place, but blasting champagne up the cheerleaders skirt goes to show that he's nothing but an asshat and a Jerk-Of-Trade.