The Collaborative International Dictionary of English v.0.48:

Bamboozle \Bam*boo"zle\ (b[a^]m*b[=oo]"z'l), v. t. [imp. & p. p.
   Bamboozled (b[a^]m*b[=oo]"z'ld); p. pr. & vb. n.
   Bamboozling (b[a^]m*b[=oo]"zl[i^]ng).] [Said to be of Gipsy
   origin.]
   To deceive by trickery; to cajole by confusing the senses; to
   hoax; to mystify; to humbug. [Colloq.] --Addison.
   [1913 Webster]

         What oriental tomfoolery is bamboozling you? --J. H.
                                                  Newman.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

21 Moby Thesaurus words for "bamboozled":
   addled, at a loss, baffled, beat, buffaloed, confounded, dazed,
   floored, fuddled, in a dilemma, in suspense, licked, muddled,
   mystified, nonplussed, on tenterhooks, perplexed, puzzled, stuck,
   stumped, thrown