Definition & Meaning of "hair burger"in English

What is the origin of the term "hair burger" and how is it used?

"Hair burger" is a slang term for the female genitalia that emerged in late 20th-century English, mainly in informal or sexualized contexts. The term uses "hair" to reference pubic hair and "burger" as a crude metaphor for the vulva, creating a graphic and humorous image. It is used jokingly or sexually among peers, often online or in casual conversation. The term is vulgar and explicit, never neutral, and inappropriate in polite or formal settings.