"Empowering Advanced Learners of English in Business and Academia - TOEFL / ESL / EFL"
Video example (click "CC" to view the text as it is spoken)
Supporting someone when they enter difficult or dangerous situations.
Context : History, Social Life
Semantic: protect, support
Usage of “I got your back”
When you go into battle, don't you worry, I got your back.
It's nice having big brother. I know if I get in trouble, he's got my back.
Examples of idiom “I got your back” from Twitter