be the death of

idiom

: to cause (someone) to die
I worry that his drug addiction will be the death of him.
often used figuratively suggesting concern or frustration
Those kids will be the death of me!

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Wednesday spent her summer getting a grip on those psychic powers, which we were warned would be the death of her but have actually caused her literally zero problems so far. Jessica M. Goldstein, Vulture, 6 Aug. 2025 Critics say adopting socialist positions would bring widespread electoral losses and prove to be the death of the Democratic Party. Emily Hallas, The Washington Examiner, 3 July 2025 Political parties will be the death of American democracy. Chris Roemer, Baltimore Sun, 9 Jan. 2025 This show and this couple are going to be the death of me. Sara Netzley, EW.com, 19 Dec. 2024 See All Example Sentences for be the death of

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“Be the death of.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/be%20the%20death%20of. Accessed 10 Sep. 2025.

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