if it's the last thing someone (ever) does
idiom
—used to say that someone is determined to do something
He'll have his revenge if it's the last thing he (ever) does!
Cite this Entry
“If it's the last thing someone (ever) does.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/if%20it%27s%20the%20last%20thing%20someone%20%28ever%29%20does. Accessed 4 Mar. 2025.
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Merriam-Webster unabridged
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