[1] : The Collaborative International Dictionary of English v.0.48

wet \wet\ we^t, a. compar. wetter; superl. wettest.
   oe. wet, weet, as. w=aet; akin to ofries. w=et, icel.
   v=atr, sw. vat, dan. vaad, and e. water. root137. see
   water.
   1913 webster
   1. containing, or consisting of, water or other liquid;
      moist; soaked with a liquid; having water or other liquid
      upon the surface; as, wet land; a wet cloth; a wet table.
      "wet cheeks." --shak.
      1913 webster

   2. very damp; rainy; as, wet weather; a wet season. "wet
      october's torrent flood." --milton.
      1913 webster

   3. chem. employing, or done by means of, water or some
      other liquid; as, the wet extraction of copper, in
      distinction from dry extraction in which dry heat or
      fusion is employed.
      1913 webster

   4. refreshed with liquor; drunk. slang --prior.
      1913 webster

   wet blanket, wet dock, etc. see under blanket, dock,
      etc.

   wet goods, intoxicating liquors. slang
      1913 webster

   syn: nasty; humid; damp; moist. see nasty.
        1913 webster
see also:
wetter wettest water wet blanket wet dock blanket 
dock wet goods nasty 

[2] : WordNet (r) 2.0

wet blanket
     n : someone who spoils the pleasure of others syn: spoilsport,
          killjoy, party pooper
see also:
spoilsport killjoy party pooper 

[3] : Moby Thesaurus II by Grady Ward, 1.0

57 moby thesaurus words for "wet blanket":
   foamite, acid, automatic sprinkler, bore, buttonholer, carbon tet,
   carbon tetrachloride, carbon-dioxide foam, chill, cold water,
   crashing bore, crepehanger, damp, damper, deck gun, deluge set,
   determent, deterrent, discouragement, drag, drip, dryasdust, dusty,
   extinguisher, fire apparatus, fire engine, fire hose, fire hydrant,
   fireplug, flat tire, foam, foam extinguisher, frightful bore,
   grouch, headache, hook-and-ladder, humdrum, killjoy, ladder pipe,
   malcontent, nuisance, pessimist, pest, pill, proser, pumper,
   snorkel, soda, sourpuss, spoilsport, sprinkler, sprinkler head,
   sprinkler system, super-pumper, twaddler, water, water cannon

Wet Blanket >> W Words
Wet Blanket, definition of term: Wet Blanket
wet+blanket_pag1.html

Wet >> W Words
Wet, definition of term: Wet
wet_pag1.html

Blanket >> B Words
Blanket, definition of term: Blanket
blanket_pag1.html

Wet Pack >> W Words
Wet Pack, definition of term: Wet Pack
wet+pack_pag1.html

Wet Nurse >> W Words
Wet Nurse, definition of term: Wet Nurse
wet+nurse_pag1.html

Wet Dream >> W Words
Wet Dream, definition of term: Wet Dream
wet+dream_pag1.html

Wet Bar >> W Words
Wet Bar, definition of term: Wet Bar
wet+bar_pag1.html