| Date: | 1700-1800 |
| Origin: | Probably from the sound of hitting |
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whack1
[transitive] informal
[transitive] informal1 to hit someone or something hard
2 British English spoken to put something somewhere
whack something in/on/under etc something
Just whack the bacon under the grill for a couple of minutes.
Just whack the bacon under the grill for a couple of minutes.