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cudgel one's brains

phrase

: to think hard (as for a solution to a problem)

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cudgel one's brains
cudgel play
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“Cudgel one's brains.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cudgel%20one%27s%20brains. Accessed 16 Dec. 2025.

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Last Updated: - Definition revised
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