in context “cheb3i biha”
merci bzaf 
It comes from “chb3” = “full” the opposit of “hungry”, so cheb3i is get full" / “get enough” / “satisfy yourself”
In the contest “cheb3i biha”, it’s a reaction from somone who you took sth from, so when they’re desperate to have it back, they say “chab3i/chba3 biha” meaning: just take it / ok take it <— it doesn’t have to be food.
Hahaha shoukran!! i get it now 