definitions

wack

1
[ wak ]
/ wæk /
Slang.
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noun

wacko.

adjective

very bad: All drugs are bad, but crack is wack.
extreme; far-out.

RELATED WORDS

figure, personality, case, customer, oddball, freak, oddity, eccentric, nut, queer, personage, clown, weirdo, spook, crank, original, card, duck, zombie

Nearby words

wabbit, wabble, wabbly, wac, wace, wack, wacke, wacked-out, wacko, wacky, wacky tobacky

Origin of wack

1
First recorded in 1935–40; perhaps back formation from wacky

Definition for wack (2 of 2)

wack

2
[ wak ]
/ wæk /

verb (used with or without object), noun

whack.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for wack

British Dictionary definitions for wack

wack

wacker (ˈwækə)

/ (wæk) /

noun

Liverpool and Midland English dialect friend; pal: used chiefly as a term of address

Word Origin for wack

perhaps from dialect wack or whack to share out, hence one who shares, a friend
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for wack

wack

n.

"crazy person," 1938, back-formation from wacky. Adjective in slang sense of "worthless, stupid," is attested from late 1990s.

Online Etymology Dictionary, © 2010 Douglas Harper