bushwhacker Meaning, Definition & Usage

  1. noun a disparaging term for an unsophisticated person
    hillbilly.
  2. noun a Confederate guerrilla during the American Civil War

WordNet

Bush"whack`er noun
Definitions
  1. One accustomed to beat about, or travel through, bushes. U.S.
    They were gallant bushwhackers, and hunters of raccoons by moonlight. W. Irving.
  2. A guerrilla; a marauding assassin; one who pretends to be a peaceful citizen, but secretly harasses a hostile force or its sympathizers. U.S. Farrow.

Webster 1913