- to strike with a smart, resounding blow or blows.
- to divide into or take in shares (often followed by up): Whack the loot between us two.
- to strike a smart, resounding blow or blows.
- a smart, resounding blow: a whack with his hand.
- a trial or attempt: to take a whack at a job.
- a portion or share.
- whack off,
- to cut off or separate with a blow: The cook whacked off the fish's head.
- to masturbate.
- to produce quickly or, sometimes, carelessly: She whacks out a short story every week or so.
- out of order or alignment; not in proper condition.
- a variant of wack1.
- to strike with a sharp resounding blow
- to exhaust completely
- to put something on to or into something else with force or abandon
- to murder
- a sharp resounding blow or the noise made by such a blow
- a share or portion
- a try or attempt (esp in the phrase have a whack at)
- out of order; unbalanced
- an exclamation imitating the noise of a sharp resounding blow