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in one's shirtsleeves

phrase

variants or in shirtsleeves
: wearing a shirt but no coat

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in one's right mind
in one's shirtsleeves
in one's sleep
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“In one's shirtsleeves.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20one%27s%20shirtsleeves. Accessed 11 Dec. 2025.

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Last Updated: - Definition revised
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