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Definitions from WordNet

Noun whacko has 1 sense
  1. nutter, wacko, whacko - a person who is regarded as eccentric or mad
    --1 is a kind of eccentric, eccentric person, flake, oddball, geek

Definitions from the Web



Whacko is a term primarily used to describe a person who behaves in an eccentric, peculiar, or irrational manner. It can also be used as a noun, adjective, or verb.

Senses and Usages

Noun - Whacko

1. A person who displays eccentric or irrational behavior.

Example Sentence: John's conspiracy theories make everyone think of him as a whacko.

Adjective - Whacko

1. Characterized by or exhibiting eccentric or irrational behavior.

Example Sentence: His whacko ideas are turning the project into a complete disaster.

Adjective - Whacko

1. (Informal) Extremely enthusiastic or fanatical.

Example Sentence: The fans went whacko when their favorite team won the championship.

Verb - Whacko

1. (slang) To strike or hit something forcefully and abruptly.

Example Sentence: He whackoed the ball out of the park with an impressive swing.

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