gobbledegook

from The Collaborative International Dictionary of English v.0.48

gobbledegook \gobbledegook\, gobbledygook \gobbledygook\n.
   The incomprehensible or pompous jargon of specialists; as,
   psychoanalytic gobbledygook.
   [WordNet 1.5]

from Moby Thesaurus II by Grady Ward, 1.0

32 Moby Thesaurus words for "gobbledegook":
      balderdash, bosh, bull, bullshit, bunk, circumlocution, crap,
      deception, deceptiveness, double-talk, drivel, equivocation,
      eyewash, garbage, gibberish, gobbledygook, hogwash, humbug, jargon,
      malarkey, moonshine, mumbo-jumbo, nonsense, obfuscation,
      obscurantism, piffle, poppycock, quibbling, rot, rubbish,
      shiftiness, vagueness

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