Word.ws English Dictionary

whacko

whacko is the alternative spelling of wacko.

Meaning of wacko

Adjective

wacko (comparative more wacko, superlative most wacko)

  1. (derogatory, informal, slang) Amusingly eccentric or irrational.

See all 3 meanings of wacko

Forms of whacko

Adjective
comparativemore whacko
superlativemost whacko
Noun
pluralwhackos
pluralwhackoes

Questions about whacko

What is whacko the alternative spelling of?
Whacko is the alternative spelling of wacko.

Words near whacko in the dictionary

  1. whacking out
  2. whacking up
  3. whackings
  4. whackjob
  5. whackjobs
  6. whacko
  7. whackoes
  8. Whackopedia
  9. whackos
  10. whacks
  11. whacks off

Source and license

Adapted from Wiktionary: whacko (page history and authors); wacko (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “whacko.” Word.ws, https://word.ws/whacko. Based on Wiktionary, CC BY-SA 4.0.