\ ˈhwak, ˈwak\
whacked; whacking; whacks

Definition of whack

 (Entry 1 of 2)

transitive verb

1a : to strike with a smart or resounding blow whack the ball
b : to cut with or as if with a whack : chop
2 chiefly British : to get the better of : defeat
3 slang : murder, kill

intransitive verb

: to strike a smart or resounding blow



Definition of whack (Entry 2 of 2)

1a : a smart or resounding blow also : the sound of or as if of such a blow
b : a critical attack
2 : portion, share
4a : an opportunity or attempt to do something take a whack at it
b : a single action or occasion borrowed $50 all at one whack
out of whack
1 : out of proper order or shape threw his knee out of whack
2 : not in accord feeling out of whack with her contemporaries— S. E. Rubin

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Other Words from whack


whacker noun

Examples of whack in a Sentence


She whacked the piñata with a stick. The old man lifted his cane and whacked the mugger on the head. They were whacking through the jungle with their machetes. He got whacked by mobsters.


The pile of books hit the floor with a whack. took a whack at solving the math problem
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Recent Examples on the Web: Verb

The game wants very badly to whack you over the head with its style, as well, yet developer Insomniac Games doesn't falter or fumble due to that stylistic obsession. Sam Machkovech, Ars Technica, "Sunset Overdrive review: Ride the rails to kaboom-town (finally on PCs, too)," 17 Nov. 2018 That’s when an NCO or one of your buddies whacks you on the head and tells you to get moving. Alex Kingsbury, BostonGlobe.com, "The lesson of the ‘Broward Coward’," 23 Feb. 2018 Readers must whack their way through a thicket of complexities that lies at the confluence of general relativity and quantum theory. Alan Hirshfeld, WSJ, "Book Review: Feeling Gravity’s Pull," 16 Nov. 2018 In the 32 plate appearances since coming off the DL, Prado whacked his first home run of the season and now has six RBI. Matthew Defranks, Sun-Sentinel.com, "A Closer Look: Miami Marlins 2, Philadelphia Phillies 0," 14 July 2018 There’s also a whacked-out running joke about a baby who resides in the Once-ler’s desk drawer, and is brought out at one point only to precipitate a small incident. James Hebert, sandiegouniontribune.com, "At Old Globe, 'The Lorax' brings Dr. Seuss' environmental saga to vivid life," 8 July 2018 The animal whacked two other officers with its tail and fell out of the vehicle. The Web Staff, OrlandoSentinel.com, "Alligator knocks out captor, whacks officers in Ocoee: report," 6 June 2018 After exploding for 31 runs in a three-game sweep of the Marlins, Cubs hitters whacked the batting-practice fastballs Sox pitchers offered for 11 more. David Haugh, chicagotribune.com, "Willson Contreras' huge day exposes big-as-ever gap between Cubs and White Sox," 11 May 2018 Abt was fourth, with di Grassi next; the Brazilian whacked the wall during his final run and had to settle for fifth. Jonathan M. Gitlin, Ars Technica, "Formula E ends its season—and an era—in Brooklyn," 18 July 2018

Recent Examples on the Web: Noun

The major reason for the price cut is the expiring federal tax credit for buying a Tesla, a fact that was already throwing the electric car market out of whack. Andrew Moseman, Popular Mechanics, "Tesla Just Dropped Its Car Prices by $2,000," 3 Jan. 2019 As the earthy smell of manure filled the air, the men yelled for the Holsteins to move and urged them forward with the whack of a plastic stick. NBC News, "Best advice to U.S. dairy farmers? 'Sell out as fast as you can'," 30 June 2018 Finnbogason of Iceland is brought down with a whack on the calf from behind. Victor Mather, New York Times, "Nigeria Finds World Cup Magic Against Iceland," 23 June 2018 Something to do with a rib out of whack or something. Orion Sang, Detroit Free Press, "Detroit Tigers' Michael Fulmer has better start, despite loss," 3 June 2018 Offered as a quarter dark ($7.75), a quarter white ($8.15), half mix ($9.45) or half all white ($9.85), the birds are broken down to order, a swift whack of a cleaver quickly dividing the chickens into the varying portions. Lindsey Mcclave, The Courier-Journal, "Yummy Pollo's rotisserie chicken is a recipe for Peruvian perfection," 16 May 2018 Earlier in the decade when the banks were showered with deposits as their customers deposited the bonus checks and royalty checks that were rolling in, capital ratios got out of whack for some. Patrick Danner, San Antonio Express-News, "Deposits rise again at Eagle Ford banks, but gains in loans weakest in years," 9 Apr. 2018 The Cavaliers won the championship the Indians did not in baseball, but the NBA secured the franchise with a deal that enticed the Gund brothers to buy the team after the whack-a-doodle reign of Ted Stepien. Bill Livingston, cleveland.com, "Cleveland Indians 2018: A quarter-century in the park that saved the team: Bill Livingston (photos)," 6 Apr. 2018 Montreal’s leading scorer, Brendan Gallagher, took two whacks at the puck right in front of the net. Dave Hyde, Sun-Sentinel.com, "Hyde: "Loooo" for Luongo is chorus of Panthers playoff hopes," 9 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'whack.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of whack


1719, in the meaning defined at transitive sense 1a


1736, in the meaning defined at sense 1a

History and Etymology for whack


probably imitative of the sound of a blow

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Statistics for whack

Last Updated

25 Dec 2018

Look-up Popularity

Time Traveler for whack

The first known use of whack was in 1719

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More Definitions for whack



English Language Learners Definition of whack

 (Entry 1 of 2)

: to hit (someone or something) with great force

: to reduce (something) by a large amount

: to murder or kill (someone)



English Language Learners Definition of whack (Entry 2 of 2)

: the act of hitting someone or something with great force

: the sound made when something is hit hard

: a share or portion of something


\ ˈhwak, ˈwak\
whacked; whacking

Kids Definition of whack

 (Entry 1 of 2)

: to hit with a hard noisy blow The batter whacked the ball.



Kids Definition of whack (Entry 2 of 2)

1 : a hard noisy blow I gave the ball a whack.
2 : the sound of a hard noisy blow
out of whack
: not in good working order or shape

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More from Merriam-Webster on whack

Rhyming Dictionary: Words that rhyme with whack

Thesaurus: All synonyms and antonyms for whack

Spanish Central: Translation of whack

Nglish: Translation of whack for Spanish Speakers

Britannica English: Translation of whack for Arabic Speakers

Comments on whack

What made you want to look up whack? Please tell us where you read or heard it (including the quote, if possible).


tremendous in size, volume, or degree

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