whack off


[hwak, wak]
verb (used with object)
to strike with a smart, resounding blow or blows.
Slang. to divide into or take in shares (often followed by up ): Whack the loot between us two.
verb (used without object)
to strike a smart, resounding blow or blows.
a smart, resounding blow: a whack with his hand.
Informal. a trial or attempt: to take a whack at a job.
Slang. a portion or share.
Verb phrases
whack off,
to cut off or separate with a blow: The cook whacked off the fish's head.
Slang: Vulgar. to masturbate.
whack out, Slang. to produce quickly or, sometimes, carelessly: She whacks out a short story every week or so.
out of whack, Informal. out of order or alignment; not in proper condition.

1710–20; orig. dial., Scots form of thwack; cf. whang2, whittle

whacker, noun

5. try, go, turn.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
whack (wæk)
1.  to strike with a sharp resounding blow
2.  informal (Brit) (usually passive) to exhaust completely
3.  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
4.  slang (US) (tr) to murder: if you were out of line you got whacked
5.  a sharp resounding blow or the noise made by such a blow
6.  informal a share or portion
7.  informal a try or attempt (esp in the phrase have a whack at)
8.  informal out of whack out of order; unbalanced: the whole system is out of whack
9.  an exclamation imitating the noise of a sharp resounding blow
[C18: perhaps a variant of thwack, ultimately of imitative origin]

whack off
slang (intr, adverb) to masturbate

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

"to strike sharply," 1719, probably of imitative origin. The noun is from 1737. The word in out of whack (1885) is perhaps the slang meaning "share, just portion" (1785), which may be from the notion of the blow that divides, or the rap of the auctioneer's hammer.
Online Etymology Dictionary, © 2010 Douglas Harper
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Slang Dictionary

whack definition

and wack
  1. tv.
    to strike someone or something. : Larry reached down and wacked the dog across the snout.
  2. n.
    a blow or hit (at someone or something). : She landed a nasty wack on his thigh.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw-Hill Education.
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beat off definition

and ball off; jack off; jag off; jerk off; pull (oneself)
  1. in.
    to masturbate. (Usually objectionable.) : They say if you beat off too much, you'll get pimples.
  2. in.
    to waste time; to waste one's efforts; to do something inefficiently. : The whole lot of them were jacking off rather than sticking to business. , Stop whanking off and get on with your work!
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw-Hill Education.
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American Heritage
Idioms & Phrases

whack off

  1. Cut off, as in The cook whacked off the fish's head with one blow, or The barber whacked off more hair than I wanted him to. [Slang; first half of 1900s]

  2. Masturbate, as in He went to his room and whacked off. [Vulgar slang; mid-1900s]

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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