colloq. Also 8–9 Sc. whawk, whauk, 9 wack. [? Echoic: perh. an alteration of THWACK.]

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  1.  A vigorous stroke with a stick or the like; a heavy resounding blow; also the sound of this.

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1737.  Ramsay, Sc. Prov. (1750), 13. As sair greets the bairn that’s paid at e’en, as he that gets his whawks in the morning.

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1823.  E. Moor, Suffolk Words, 477. Whack, a blow, a thump.

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1832.  Barrington, Pers. Sk., III. xviii. 242. I never saw a bone broken or any dangerous contusion from what they called ‘whacks’ of the shillelah (which was never too heavy).

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1854.  Surtees, Handley Cr., lxxiii. Bill gave the boy two or three more hearty whacks, and then kicked him into the hosier’s shop.

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1860.  Thackeray, Lovel, v. Bessy’s ‘Ah!’ or little cry was followed by a whack, which I heard as clear as anything I ever heard in my life.

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  b.  To have or take a whack at: to make an attempt or attack upon. U.S.

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1891.  Boston (Mass.) Jrnl., 22 June, 2/2. There are thousands … who … are anxious to have a whack, at the polls, at the party that deceived them.

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1894.  Advance (Chicago), 20 Dec., 418/1. Mother’s got over her long weak spell, and is able to take a whack at doings.

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  2.  A portion, share, allowance; esp. a full share, a large portion or amount.

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  Chiefly in phr. to get, have, take one’s whack.

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1785.  Grose, Dict. Vulgar T., Whack, a share of a booty obtained by fraud.

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1790.  Alex. Wilson, in Poems & Lit. Prose (1876), II. 51. Whauks o’ guid ait-farll cowins Synet down wi’ whey.

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1805.  C. Paget, in P. Papers (1896), II. 162. My whack of prize money … will be about fifty thousand Pounds.

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1830.  Marryat, King’s Own, xxxiv. ‘I’ll punish the port to-morrow.’… ‘I’ll take my whack to-day.’

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1874.  Slang Dict., 338. To go whacks, to divide equally; to enter into partnership.

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1894.  Astley, Fifty Yrs. Life, II. 119. He could not trust himself to take a fair whack of liquor without taking too much.

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1918.  Blackw. Mag., July, 43/2. I’ve had a run for my money this whack of leave.

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  b.  A dividing up of accounts.

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1885.  Hornaday, 2 Yrs. in Jungle, xxiv. 284. When the Colombo rice merchants, shopmen, and hotel-keepers have their quarterly ‘whack-up’ with the government.

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  3.  As int. or adv.: With a whack (in sense 1).

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1812.  H. & J. Smith, Rej. Addr., Archit. Atoms. Jill … bobbs plump against him, whack!

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1836.  Marryat, Midsh. Easy, v. Whack came the cane on Johnny’s shoulders.

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1857.  Hughes, Tom Brown, I. ii. Whack, whack, whack, come his blows.

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