Wildness and Untamed Nature:
* "Beat around the bush": To avoid directly addressing a topic, like avoiding a thorny bush.
* "Bush telegraph": Unofficial communication or rumors spreading quickly, like messages carried by birds through the bush.
* "Bush league": Low quality or amateurish, like a baseball league in a rural area.
Obscurity and Isolation:
* "Out in the sticks/bush": Far from civilization or a major city, in a remote area.
* "Off the beaten track": Away from popular or well-known paths, like a hidden trail in the bush.
Lack of Sophistication:
* "Bush lawyer": An untrained or unqualified person claiming legal expertise, often in a remote area.
* "Bush doctor": A person who practices medicine without formal training, particularly in rural areas.
Other connotations:
* "Bushfire": A wildfire that spreads rapidly and uncontrollably, often in a rural area.
* "Bush Tucker": Food found in the wild, typically used by indigenous people.
The word "bush" often evokes images of untamed nature, remote areas, and a lack of sophistication. This makes it a powerful tool for adding nuance and imagery to idioms.