be the death of
US /bi ðə dɛθ ʌv/
UK /bi ðə dɛθ ʌv/

1.
ser la muerte de, causar muchos problemas o preocupaciones
to cause someone to die, or to cause someone a lot of trouble or worry
:
•
All this stress is going to be the death of me.
Todo este estrés va a ser mi muerte.
•
His constant complaining will be the death of me.
Sus quejas constantes van a ser mi muerte.