Rock (one) to (one's) core verb phrase
To affect someone to an extreme degree, especially in a surprising way
His sudden divorce proposal rocked her to her core.
He lost all his assets after losing his business. It rocked him to his core.
His grandpa's death has rocked him to his core.
Used to say that someone was badly and deeply hurt or affected by imprisonment or ill-treatment
To be severely affected by something or to undergo financial losses.
To describe the action of affecting one in a deep and personal way.
The verb "rock" should be conjugated according to its tense.
The idiom is used to say that someone is stupid, unthinking, or inattentive.
When I tell them anything, they look at me like the lights are on, but nobody's home.