if it's the last thing someone does

idiom

used to say that a person is determined to do something
She'll get her revenge if it's the last thing she does!

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Cite this Entry

“If it's the last thing someone does.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/if%20it%27s%20the%20last%20thing%20someone%20does. Accessed 5 Dec. 2022.

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