Merriam-Webster's definition fits Ducati's Monster as well as any and better than most. But you won't find a Monster more worthy of that name than the 118-horsepower, hlins-suspended, blood-red '07 S4Rs, which is a very good thing. Give Ducati credit for defining the modern production naked bike in '93 with the original M900. But up until now, the Monster, even the heretofore-definitive 109-horse S4R, wasn't all that monstrous compared with, say, BMW's 141-horse K1200R or Triumph's 120-horse Speed Triple. Fun? Loads. But it felt, well, old, with ergonomics and handling that were an acquired taste at best.