maggot

from WordNet (r) 3.0 (2006)

maggot
    n 1: the larva of the housefly and blowfly commonly found in
         decaying organic matter

from The Collaborative International Dictionary of English v.0.48

Maggot \Mag"got\, n. [W. macai, pl. maceiod, magiod, a worn or
   grub; cf. magu to bread.]
   1. (Zool.) The footless larva of any fly. See {Larval}.
      [1913 Webster]

   2. A whim; an odd fancy. --Hudibras. Tennyson.
      [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

103 Moby Thesaurus words for "maggot":
      alabaster, apparition, arachnid, arthropod, aurelia, bee, beetle,
      boutade, brainchild, brainstorm, bubble, bug, capriccio, caprice,
      caterpillar, centipede, chalk, chilopod, chimera, chrysalis,
      cocoon, conceit, crank, craze, crazy idea, crotchet,
      daddy longlegs, delirium, diplopod, driven snow, eidolon, fad,
      fancy, fantasque, fantastic notion, fantasy, fiction, figment,
      fleece, flimflam, flour, fly, foam, fool notion, freak,
      freakish inspiration, grub, hallucination, harebrained idea,
      harvestman, hexapod, humor, idle fancy, illusion, imagery,
      imagination, imagining, insect, insubstantial image, invention,
      ivory, kink, larva, lily, make-believe, megrim, milk, millepede,
      millipede, mite, myth, notion, nymph, nympha, paper, passing fancy,
      pearl, phantasm, phantom, pupa, quirk, romance, scorpion, sheet,
      sick fancy, silver, snow, spider, swan, tarantula,
      thick-coming fancies, tick, toy, trip, vagary, vapor, vision, whim,
      whim-wham, whimsy, wiggler, wildest dreams, wriggler