An Australian term meaning to beat through thick bush, perhaps with a stick, usually off the marked track, whilst bush-walking.

v. collectively or individually finding someone/something to blame for a problem, as opposed to brainstorming which connotes finding solutions to a problem

n. the act of finding someone/something to blame for a problem

(from a TV ad for HD television)

Bunch of teenagers going into a forest or large area of "bush" and partying.