get off one's case
get off one's back
get off one's tail
To stop bothering and constantly checking up on someone; quit hounding one.
"Get off my case!" he cried angrily. "You're worse than the cops."
To stop criticizing or nagging someone.
"Get off my back! Can't you see how busy I am?"
give the shirt off one's back
To give away something or everything that you own.
He'd give you the shirt off his back.
off one's back
Stopped from bothering one; removed as an annoyance or pest.
"Having a kid brother always following me is a nuisance," Mary told her mother. "Can't you get him off my back?"
The singer was so popular with teenagers that he took a secret vacation, to keep them off his back.