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Give the ball a good whack.
Whack! A branch hit me in the face.
You haven't done your whack!
The agent takes a 15% whack.
Even members of his family have to pay the full whack.
The case runs for several weeks with every lawyer on top whack.
The buses and trains are all out of whack today because of the snow.
I didn't sleep well last night and I'm all out of whack.
This is the British English definition of whack. View American English definition of whack.
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View the pronunciation for whack.
a paid holiday given to a new employee before they start their job
a horn that is blown during some Jewish religious festivals
an expandable stick which you attach to a mobile phone or camera to help you take a selfie …
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Definition of whack from the online English dictionary from Macmillan Publishers Limited.