The Collaborative International Dictionary of English v.0.48:

Moonshine \Moon"shine`\, n.
   1. The light of the moon.
      [1913 Webster]

   2. Hence, show without substance or reality.
      [1913 Webster]

   3. A month. [R.] --Shak.
      [1913 Webster]

   4. A preparation of eggs for food. [Obs.]
      [1913 Webster]

   5. Liquor smuggled or illicitly distilled, especially liquor
      distilled illegally in rural parts of the southern U. S.
      [Dial. Eng., & Colloq. or Slang, U. S.]
      [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Moonshine \Moon"shine`\, a.
   Moonlight. [R.] --Clarendon.
   [1913 Webster]

   2. Empty; trivial; idle.
      [Webster 1913 Suppl.]

   3. Designating, or pertaining to, illicit liquor; as,
      moonshine whisky. [Dial. Eng., & Colloq. or Slang, U. S.]
      [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

moonshine
    n 1: the light of the Moon; "moonlight is the smuggler's enemy";
         "the Moon was bright enough to read by" [syn: moonlight,
         moonshine, Moon]
    2: whiskey illegally distilled from a corn mash [syn:
       moonshine, bootleg, corn liquor]
    v 1: distill (alcohol) illegally; produce moonshine

Moby Thesaurus II by Grady Ward, 1.0:

101 Moby Thesaurus words for "moonshine":
   BS, argument, argument by analogy, argumentum ad baculum,
   argumentum ad captandum, argumentum ad hominem, bad case,
   balderdash, balls, baloney, bathtub gin, begging the question,
   bilge, black-market, black-marketeer, blague, blah, blah-blah,
   blather, blatherskite, blether, blockade, bootleg, bootleg liquor,
   bop, bosh, brew, bull, bullshit, bunk, bunkum, circular argument,
   claptrap, con, crap, crowd-pleasing argument, distill, drivel,
   empty words, eyewash, fallacy, fence, flam, flapdoodle, flimflam,
   formal fallacy, gammon, garbage, gas, guff, gup, hogwash, hoke,
   hokum, home brew, hooch, hooey, hot air, humbug, humbuggery,
   hysteron proteron, insincere argument, jiggery-pokery, jive, line,
   logical fallacy, malarkey, material fallacy, mere rhetoric,
   moonbeam, moonglow, moonlight, mountain dew, non sequitur,
   paralogism, petitio principii, philosophism, piffle, poppycock,
   pseudosyllogism, push, rot, rubbish, scat, shine, shit, shove,
   smoke, solecism, sophism, sophistry, stuff and nonsense,
   taradiddle, tommyrot, tripe, twaddle, verbal fallacy, weak point,
   white lightning, white mule, wind