Definition & Meaning of "get out of one's hair"

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

The exact origin of the phrase "get out of one's hair" is unclear. However, it is believed to have originated in the United States in the mid-20th century. The phrase draws on the imagery of someone being bothered or annoyed by someone else, likening the annoying person to hair that is constantly in one's face or causing discomfort. It is commonly employed in interpersonal relationships, such as family dynamics or friendships, when someone feels overwhelmed or irritated by another person's constant presence or interference. It can also be used in professional settings, indicating the need for a colleague or subordinate to stop causing inconvenience or distraction.