whack
1 Americanverb (used with object)
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to strike with a smart, resounding blow or blows.
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Slang. to divide into or take in shares (often followed byup ).
Whack the loot between us two.
verb (used without object)
noun
verb phrase
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whack out to produce quickly or, sometimes, carelessly.
She whacks out a short story every week or so.
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whack off
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to cut off or separate with a blow.
The cook whacked off the fish's head.
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Slang: Vulgar. to masturbate.
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idioms
noun
verb
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to strike with a sharp resounding blow
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informal (usually passive) to exhaust completely
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informal (tr; usu foll by in or on) to put something on to or into something else with force or abandon
whack on some sunscreen
noun
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slang (tr) to murder
if you were out of line you got whacked
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a sharp resounding blow or the noise made by such a blow
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informal a share or portion
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informal a try or attempt (esp in the phrase have a whack at )
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informal out of order; unbalanced
the whole system is out of whack
interjection
Other Word Forms
Etymology
Origin of whack
First recorded in 1710–20; originally dialect, Scots form of thwack; cf. whang 2, whittle
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The bakery now has a long-term lease, as do other graduates of the program, including Mello flower shop, arts-and-crafts studio Craftivity and Whack Donuts.
From Los Angeles Times • Mar. 16, 2026
Whack it about for the first hour or bat for as long as they can?
From BBC • Feb. 23, 2024
“I sound great when I’m singing in the shower,” Whack declares on this single from her forthcoming album “World Wide Whack.”
From New York Times • Jan. 26, 2024
Whack is due back in court on April 1.
From Fox News • Mar. 29, 2022
My cousin's shout comes from the bench: "Whack it, Anna! And then run to Jenna. Martha, take it easy on her, will you?"
From "You Bring the Distant Near" by Mitali Perkins
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.