Well, going a little further on the "newspeak" - there is one group that has even the Witnesses outdone on making up their own special language -
Scientology. I printed out their glossary of special terminology - and it ran exactly 29 pages single sided. It makes for some really incredible reading.
Some little gems:
symbiote: a term which in Dianetics is extended beyond the dictionary definition to mean "any or all life or energy forms which are mutually dependent for survival." The atom depends on the universe, the universe on the atom.
third party: one who by false reports creates trouble between two people, a person and a group, or a group and another group. See also "third party law"
third party law: a law which states that a third party must be present and unknown in every quarrel for a conflict to exist. Or, for a quarrel to occur, an unknown third party must be active in producing it between two potential opponents.
truth: The exact consideration. Truth is the exact time, place, form and event.
and on and on - to the point of Tom Cruise style raving insanity. Barking at the moon mad.