wacko

[ wak-oh ]

/ ˈwæk oʊ /

Slang.

Save This Word!

See synonyms for wacko on Thesaurus.com

noun, plural wack·os.

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

adjective

wacky.

QUIZ

GOOSES. GEESES. I WANT THIS QUIZ ON PLURAL NOUNS!

Test how much you really know about regular and irregular plural nouns with this quiz.

Question 1 of 9

Which of the following nouns has an irregular plural form?

TAKE THE QUIZ TO FIND OUT

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. 2022

How to use wacko in a sentence

At first this plays like some sort of bizarre SNL sketch: the wacko physician.
Why Is Louis C.K. So Funny? He Uses Humor as a Moral Compass.|Andrew Romano|May 2, 2014|DAILY BEAST
McCain called Cruz a “wacko bird” and later took it back, about as insincerely as possible.
Why the GOP Needs a Return to the Bush Leagues|Robert Shrum|April 21, 2014|DAILY BEAST
The hysteria and hostage taking of Wacko Bird Inc. is not reasonably matched to the current situation.
Heckuva Job, Wacko Birds: You’ve Shut Down the U.S. Government|Kirsten Powers|October 1, 2013|DAILY BEAST
The GOP “suicide caucus”, led by proud “wacko bird” Sen. Ted Cruz, was, not surprisingly, spawned from a faulty premise.
Heckuva Job, Wacko Birds: You’ve Shut Down the U.S. Government|Kirsten Powers|October 1, 2013|DAILY BEAST

In a country where six of 10 voters already think the government is too big, the wacko bird caucus has got a lot of room to fly.
Ted Cruz Might Just Have Won the Future for the GOP|Nick Gillespie|September 25, 2013|DAILY BEAST

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

wacko

Origin of wacko

Words nearby wacko

Words related to wacko

How to use wacko in a sentence

British Dictionary definitions for wacko

Word Origin for wacko