
Be the death of somebody
Figure of Speech
Used to express frustration or worry, not actual death.

Your tardiness is going to be the death of me!
Emotional Impact
Shows the speaker's emotional distress caused by someone else's action.

This suspense is going to be the death of me.
Hyperbolic Expression
An exaggeration, not to be taken literally.

Your constant joking will be the death of me!
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