twist the knife

Translations
усугублять ситуацию
He twisted the knife by reminding her of her past mistakes.
Он усугубил ситуацию, напомнив ей о её прошлых ошибках.
Definitions
To cause someone additional emotional pain or distress, especially after they have already been hurt or are in a vulnerable state.
Words
knife

noun
нож
twist

verb
крутить