The Collaborative International Dictionary of English v.0.48:

Bellyful \Bel"ly*ful\, n.
   As much as satisfies the appetite. Hence: A great abundance;
   more than enough. --Lloyd.
   [1913 Webster]

         King James told his son that he would have his bellyful
         of parliamentary impeachments.           --Johnson.
   [1913 Webster]

WordNet (r) 3.0 (2006):

bellyful
    n 1: an undesirable overabundance; "a bellyful of your
         complaints"

Moby Thesaurus II by Grady Ward, 1.0:

28 Moby Thesaurus words for "bellyful":
   bumper, capacity, charge, complement, cram, crush, engorgement,
   fill, full house, full measure, fullness, glut, jam up, lading,
   load, more than enough, mouthful, repletion, satiation, satiety,
   satisfaction, saturatedness, saturation, saturation point, skinful,
   snootful, supersaturation, surfeit