| 1. | a bent or curved piece of tough wood used by the Australian Aborigines as a throwing club, one form of which can be thrown so as to return to the thrower. |
| 2. | something, as a scheme or argument, that does injury to the originator. |
| 3. | Theater.
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| 4. | to come back or return, as a boomerang. |
| 5. | to cause harm to the originator; backfire. |
