Definition & Meaning of "rug muncher"in English

What is the origin of the term "rug muncher" and how is it used?

"Rug muncher" is a crude slang term that appeared in the late 20th century, built on a metaphor comparing pubic hair to a rug and "munching" to oral sex. It refers to a person who performs cunnilingus. The term has been used in sexual slang, pornography, and explicit humor. It is vulgar and often derogatory, especially when used outside consensual sexual contexts, and can be offensive due to its objectifying and mocking tone.