humdinger

from WordNet (r) 3.0 (2006)

humdinger
    n 1: someone of remarkable excellence; "a humdinger of a
         secretary"

from Moby Thesaurus II by Grady Ward, 1.0

21 Moby Thesaurus words for "humdinger":
      ace, beaut, corker, crackerjack, daisy, dandy, darb, dilly, dream,
      honey, killer-diller, knockout, lollapaloosa, lulu, nifty, peach,
      pip, pippin, sweetheart, the nuts, whiz