FUD

from The Collaborative International Dictionary of English v.0.48

Fud \Fud\, n. [Of uncertain origin.]
   1. The tail of a hare, coney, etc. [Prov. Eng. & Scot.]
      --Burns.
      [1913 Webster]

   2. Woolen waste, for mixing with mungo and shoddy.
      [1913 Webster]

from Jargon File (4.4.4, 14 Aug 2003)

FUD
 /fuhd/, n.

   Defined by Gene Amdahl after he left IBM to found his own company:
   "FUD is the fear, uncertainty, and doubt that IBM sales people instill
   in the minds of potential customers who might be considering [Amdahl]
   products." The idea, of course, was to persuade them to go with safe
   IBM gear rather than with competitors' equipment. This implicit
   coercion was traditionally accomplished by promising that Good Things
   would happen to people who stuck with IBM, but Dark Shadows loomed
   over the future of competitors' equipment or software. See {IBM}.
   After 1990 the term FUD was associated increasingly frequently with
   {Microsoft}, and has become generalized to refer to any kind of
   disinformation used as a competitive weapon.

from The Free On-line Dictionary of Computing (8 July 2008)

FUD

   <jargon> /fuhd/ An acronym invented by {Gene Amdahl}
   after he left {IBM} to found his own company: "FUD is the
   fear, uncertainty, and doubt that {IBM} sales people instill
   in the minds of potential customers who might be considering
   [Amdahl] products."  The idea, of course, was to persuade them
   to go with safe IBM gear rather than with competitors'
   equipment.  This implicit coercion was traditionally
   accomplished by promising that Good Things would happen to
   people who stuck with IBM, but Dark Shadows loomed over the
   future of competitors' equipment or software.

   [{Jargon File}]

   (1995-05-23)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

FUD
       Fear, Uncertainty & Doubt (slang, IBM)

from Moby Thesaurus II by Grady Ward, 1.0

35 Moby Thesaurus words for "fud":
      Methuselah, antediluvian, antique, back number, conservative, dad,
      dodo, elder, fogy, fossil, fuddy-duddy, granny, has-been, longhair,
      matriarch, mid-Victorian, mossback, old believer, old crock,
      old dodo, old fogy, old liner, old man, old poop, old woman,
      old-timer, patriarch, pop, pops, reactionary, regular old fogy,
      relic, square, starets, traditionalist