Final answer:
The term boomerang originates from the Turuwal language, spoken by Indigenous Australians, and describes a hunting tool that returns to the thrower. It's also metaphorically used to describe young adults who return to live with their parents.
Step-by-step explanation:
The word boomerang is of Australian Aboriginal origin and specifically comes from the Turuwal language, which was spoken by the Indigenous people of the area in what is now known as the Sydney region. Boomerangs served as hunting tools used for throwing, capable of returning to the thrower.
The term has been absorbed into the English language and has also been metaphorically used to describe the "Boomerang Generation," referring to young adults who return to live with their parents after having lived independently, often due to economic hardships or personal choice.