(someone or something) is going to be the death of (one)

(someone or something) is going to be the death of (one)

Said when someone or something is a source of extreme worry, distress, aggravation, or other effects too intense for one to endure. Next time, please call if you're going to be home late. You're going to be the death of me with how much you make me worry! I swear, this project is going to be the death of us. We're working 80-hour weeks just to get it done before the deadline.
See also: death, going, of
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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