- 1whack somebody/something (informal) to hit somebody/something very hard She whacked him with her handbag. James whacked the ball over the net.
- 2whack something + adv./prep. (informal) to put something somewhere without much care Just whack your bags in the corner.
- 3whack somebody (North American English, slang) to murder somebody Word Origin early 18th cent.: imitative, or perhaps an alteration of thwack.Extra examples He whacked the ball back over the net. She whacked him around the head. Some of the teachers used to whack the boys with a slipper.
BrE BrE//wæk//; NAmE NAmE//wæk//Verb Forms present simple I / you / we / they whack
BrE BrE//wæk//; NAmE NAmE//wæk//he / she / it whacks
BrE BrE//wæks//; NAmE NAmE//wæks//past simple whacked
BrE BrE//wækt//; NAmE NAmE//wækt//past participle whacked
BrE BrE//wækt//; NAmE NAmE//wækt//-ing form whacking
BrE BrE//ˈwækɪŋ//; NAmE NAmE//ˈwækɪŋ//