Definition & Meaning of "get out of {one's} face"

What is the origin of the idiom "get out of one's face" and when to use it?

The idiom "get out of one's face" originates from American slang and emerged during the latter half of the 20th century. The expression is commonly used as a way of telling someone to leave or move away from one's immediate presence, often in a dismissive or annoyed manner.