keep your hair on
idiom
British, informal
—used to tell someone not to become too excited or upset
Keep your hair on. We'll get there on time.
Cite this Entry
“Keep your hair on.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/keep%20your%20hair%20on. Accessed 27 Feb. 2025.
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Merriam-Webster unabridged
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