In dictionaries, they often use "hang in there" for more figurative meanings.
hang (on) in there: (also hang tough especially American English) spoken to remain brave and determined when you are in a difficult situation
- Ultimately, the more authentic, life-affirming religious manifestations hang in there amid, and despite, the darkness of human striving.*
My question is that,
Can we use hang in there in more physical situations such as holding something heavy or hanging on a tree?
A man having Covid 19 can not breathe easily and he needs oxygen.
Can I say to him "Hang in there! I will go find oxygen for you"?
Or, a boy is stuck in a hole and can not get out.
Can I say to him "Hang in there! I will go find a rope and get you out of there"?
Also, It seems that American people use "hang in there".
What is the equivalent expressions in British English?