When someone who was once great doesn't know when to throw in the towel, and they keep subjecting the public to their crap, time and time again, diluting their once great reputation.
Craptacular is Michael Jordan's time spent in Minor League baseball.
Did you see Ringo Starr's latest performance on the Daily Show with Jon Stewart? Yes, it was craptacular.
When "celebrities" do crappy things they think are entertaining, like join the N-th installment of yet another celebreality show! Not to be confused with Craptacular.
Anything "starring" Rob Blagojevich, MC Hammer, or Janice Dickinson is henceforth and forever deemed "Celebucrap"!