lie through one's teeth
idiom
: to say something completely untrue
She was obviously lying through her teeth.
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Lay vs. Lie
Editor Emily Brewster clarifies the difference.
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“Lie through one's teeth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lie%20through%20one%27s%20teeth. Accessed 12 Mar. 2025.
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