bushwhacker

noun5

1. •
   (US) One who travels through the woods, off the designated path.
2. •
   (US, historical) A guerrilla (of either side) during the American Civil War.

   • The bushwhackers remained at General Cooper′s camp several days, then crossed the Red River into Texas. — 1962
3. •
   (old-fashioned) Someone who attacks without warning.
4. •
   (Australia) A person who lives in the bush, especially as a fugitive; a person who clears woods and bush country.
5. •
   A small, soft-floored inflatable boat (designed for use by one or two people).

   • We spent the rest of the day hopping from pond to pond with the bushwhackers, and we found them very suited for it. — 1977