The Collaborative International Dictionary of English v.0.48:

Muff \Muff\, v. t. [imp. & p. p. Muffed; p. pr. & vb. n.
   Muffing.]
   To handle awkwardly; to fumble; to fail to hold, as a ball,
   in catching it.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

19 Moby Thesaurus words for "muffed":
   botched, bungled, butchered, fumbled, ill-advised, ill-considered,
   ill-contrived, ill-devised, ill-done, ill-executed, ill-managed,
   impolitic, misconducted, misdirected, misguided, mismanaged,
   murdered, negligent, spoiled