wacko

1 of 2

adjective

variants or less commonly whacko
: wacky

wacko

2 of 2

noun

variants or less commonly whacko
: a person who is wacky

Examples of wacko in a Sentence

Adjective a completely wacko obsession with cleaning Noun She's nice but her sister's a real wacko. a completely wacko obsession with cleaning
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
Plemons is simply next level in this one, a balls-out performance of high wacko dimension that somehow manages to be grounded in humanity, even pathos for this poor thing. Pete Hammond, Deadline, 28 Aug. 2025 This wacko crew was one of the greatest things in the history of television. Jordan Hoffman, EW.com, 14 Aug. 2025
Noun
This wacko crew was one of the greatest things in the history of television. Jordan Hoffman, EW.com, 14 Aug. 2025 His search takes him to a wacko cult in the desert run by a scamster, and that of course puts the sheriff in deadly danger. Sandra Dallas, Denver Post, 6 July 2025 See All Example Sentences for wacko

Word History

Etymology

Adjective

by alteration

First Known Use

Adjective

1965, in the meaning defined above

Noun

1936, in the meaning defined above

Time Traveler
The first known use of wacko was in 1936

Browse Nearby Words

Cite this Entry

“Wacko.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/wacko. Accessed 4 Sep. 2025.

Last Updated: - Updated example sentences
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