off one's onion

Meanings

prepositional phrase

slangCrazy; insane.
"'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."
1913, Arthur Conan Doyle, “(please specify the page)”, in The Poison Belt […], London; New York, N.Y.: Hodder and Stoughton, →OCLC

Cite this entry

APA

off one's onion. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/off%20one's%20onion

MLA

“off one's onion.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/off%20one's%20onion. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “off one's onion,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/off%20one's%20onion.