let one's hair down

phrase

: to act without pretense or self-restraint

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let one's guard down

let one's hair down

let one have it

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“Let one's hair down.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/let%20one%27s%20hair%20down. Accessed 11 Dec. 2025.

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Last Updated: 10 Dec 2025 - Definition revised

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let one's hair down

phrase

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