rack one's brain

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English

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Alternative forms

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Etymology

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Combination of rack (medieval torture method), and brain, thus meaning “to cause the mind extreme discomfort”.

Variants include rack one's wit (1583) and rack one's memory,[1] as well as cudgel one's brain / cudgel one's brains.

Pronunciation

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Verb

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rack one's brain (third-person singular simple present racks one's brain, present participle racking one's brain, simple past and past participle racked one's brain)

  1. (figuratively) To struggle to think of or remember something.
    I have been racking my brain all day trying to think of a birthday present for her.
    • 2023 January 19, Zohaib Ahmed, “Here’s how ChatGPT can help you deal with boring tasks so you can focus on things that matter”, in The Indian Express[2]:
      Let’s face it – math isn’t for everyone. If you’re done racking your brains over a question based on quadratic equations, differential calculus, or even lengthy word problems, and can’t for the life of you figure out what’s what, then perhaps it’s time you let ChatGPT take up the role of a home tutor.

Translations

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See also

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References

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  1. ^ Michael Quinion (2011 November 19) “Wrack or rack?”, in World Wide Words[1]