off one's onion
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English[edit]
Prepositional phrase[edit]
- (slang) Crazy; insane.
- 1913, Arthur Conan Doyle, “(please specify the page)”, in The Poison Belt […], London; New York, N.Y.: Hodder and Stoughton, →OCLC:
- "'E's a very clever man, the master - so clever that 'e's clean balmy sometimes. I've seen 'im right off 'is onion, and no error."