The meaning of WHACK is to strike with a smart or resounding blow. How to use whack in a sentence.

Take a whack at your homework, then ask for help if you need it. They're prepared to pay top whack for goods like this. You can use Carol's old bike - the gears are out of whack, but it still …

Define whack. whack synonyms, whack pronunciation, whack translation, English dictionary definition of whack. v. whacked , whack·ing , whacks v. tr. 1. To strike with a sharp blow; slap. …

Jan 4, 2026 · Originally Scottish; probably onomatopoeic, but compare Middle English thakken, from Old English þaccian (whence Modern thwack by conflation with whack). Sense 6 of the …

Whack is a noun and a verb, so if you are using the word as those parts of speech, it is the clear choice. Wack is an adjective, but it is not yet widely accepted as a legitimate English word.

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You really have to whack the ball. [VERB noun] Someone whacked him on the head. [VERB noun preposition]