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wacko

[ wak-oh ]
/ ˈwæk oʊ /
Slang.
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noun, plural wack·os.

Also wack. an eccentric, strange, or odd person.

adjective

wacky.

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Also whack·o [hwak-oh, wak-oh] /ˈʰwæk oʊ, ˈwæk oʊ/ .

Origin of wacko

First recorded in 1970–75, Americanism;see wacky, -o

Words nearby wacko

Wace, wack, wacke, wacked-out, wack job, wacko, wacky, wacky tobacky, Waco, wad, WADA
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Words related to wacko

screwball, crackpot, lunatic, nut, crazy, flake, dingbat, crank, weirdo, fruitcake, kook, oddball, maniac, fool, eccentric, madman, loony, madwoman, lamebrain, insane

Example sentences from the Web for wacko

British Dictionary definitions for wacko

wacko
/ (ˈwækəʊ) informal /

adjective

mad or eccentric

noun plural wackos

a mad or eccentric person

Word Origin for wacko

C20: back formation from wacky
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
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