keep your shirt on
idiom
informal
—used to tell someone to calm down or be more patient
"Aren't you ready yet?" "Keep your shirt on! I'll be ready in a minute."
Cite this Entry
“Keep your shirt on.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/keep%20your%20shirt%20on. Accessed 29 Nov. 2025.
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Merriam-Webster unabridged
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