whack

From Wiktionary

Pronunciation[change]

Verb[change]

Plain form
whack

Third-person singular
whacks

Past tense
whacked

Past participle
whacked

Present participle
whacking

  1. When you whack someone or something, you hit then with an object or body part. Usually the object is flat or blunt. The word is based on the sound it makes, so it's an onomatopoeia.
    I picked up the wooden club and whacked the running thief.