WordNet (r) 3.0 (2006):

Rabelaisian
    adj 1: of or relating to or characteristic of Francois Rabelais
           or his works; "Rabelaisian characters"

Moby Thesaurus II by Grady Ward, 1.0:

60 Moby Thesaurus words for "Rabelaisian":
   Fescennine, abusive, bawdy, blasphemous, blue, calumniatory,
   calumnious, caustic, comminatory, contumelious, cursing, cynical,
   damnatory, denunciatory, dirty, dry, dysphemistic, epithetic,
   excommunicative, excommunicatory, execratory, filthy, foul,
   foul-mouthed, foul-spoken, foul-tongued, fulminatory, fulsome,
   imprecatory, impure, ironic, ithyphallic, lewd, lurid, maledictory,
   nasty, obscene, offensive, pornographic, profane, raunchy, raw,
   ribald, risque, salacious, sarcastic, sardonic, satiric,
   scatologic, scurrile, scurrilous, smoking-room, smutty, sultry,
   unchaste, unclean, unprintable, unrepeatable, vile, vituperative