- 1whack somebody/something (informal) to hit someone or something very hard She whacked him with her handbag. James whacked the ball over the net.
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- 2whack somebody (slang) to murder someone
whack
verbNAmE//wæk//
Verb Forms present simple I / you / we / they whack he / she / it whacks
past simple whacked
-ing form whacking
Check pronunciation: whack