wacko

1 of 2

noun

variants or less commonly whacko
Synonyms of wackonext
: a person who is wacky

whacko

2 of 2

adjective

less common spelling of wacko

: wacky

Examples of wacko in a Sentence

Noun She's nice but her sister's a real wacko. a completely wacko obsession with cleaning
Recent Examples on the Web
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Noun
People who see ghosts tend to see the same ghost wafting down the same staircase, but none of the characters populating Leo’s wacko hallucinations have returned for a repeat perfor-mance. Literary Hub, 10 Apr. 2026 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 You could also get lost attempting to read the splintered English and Hebrew letters running atop a stage festooned with wacko props and occult imagery. Andrew Lampert, Artforum, 1 May 2025 See All Example Sentences for wacko

Word History

First Known Use

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 11 Jun. 2026.

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