Wacko
WordNet
noun
(1) A person who is regarded as eccentric or mad
WiktionaryText
Interjection
- hurrah
- 1952, Anthony Buckeridge, Jennings and Darbishire
- "Wacko! There's a whole pile of letters for me," Jennings cried excitedly, hopping from one foot to the other.
- 1952, Anthony Buckeridge, Jennings and Darbishire
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