William Lutz, The World of Doublespeak

Doublespeak is language which pretends to communicate but really does not. It is language which makes the bad seem good, something negative appear positive, something unpleasant appear attractive, or at least tolerable. It is language which avoids or shifts responsibility; language which is at variance with its real and its purported meaning; language which conceals or prevents thought. Doublespeak is language which does not extend thought but limits it.