Wacko Definition

wăkō
wackos
noun
A person who is wacko.
Webster's New World
Synonyms:
adjective
Wacky.
American Heritage
Webster's New World
Completely crazy; insane.
Webster's New World
interjection

(UK, dated) Hurrah.

Wiktionary

Other Word Forms of Wacko

Noun

Singular:
wacko
Plural:
wackos

Origin of Wacko

  • Alteration of wacky

    From American Heritage Dictionary of the English Language, 5th Edition

  • wack(y) + -o

    From Wiktionary

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