The Collaborative International Dictionary of English v.0.48:

Pantagruelism \Pan*tag"ru*el*ism\, n. [From Pantagruel, one of
   the characters of Rabelais.]
   1. The theory or practice of the medical profession; -- used
      in burlesque or ridicule.
      [1913 Webster]

   2. An assumption of buffoonery to cover some serious purpose.
      [R.] --Donaldson.
      [1913 Webster]