adj. phr. 1. informal 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.
Antonym: ON ONE'S BACK 2 . See: GIVE THE SHIRT OFF ONE'S BACK.