Definition, Meaning & Synonyms

whacko

noun
/ˈwæk.oʊ/
Definition
A person who is eccentric, absurd, or mentally unstable.
Examples
  • She has some whacko ideas about how to save the environment.
  • He is considered a bit of a whacko for his unusual hobbies.
  • The movie features a whacko character that keeps the audience laughing.
Meaning
The term ‘whacko’ is often used informally to describe someone whose behavior is unconventional or who seems crazy in a humorous or light-hearted way.
Synonyms
  • crazy
  • eccentric
  • nutty
  • loony
  • madman