Definition & Meaning of "ham wallet"in English

What is the origin of the term "ham wallet" and how is it used?

"Ham wallet" is a slang term for the external female genitalia, especially the vulva. It likely appeared in late 20th-century English as a crude, humorous metaphor, comparing the shape or appearance of the vulva to a folded piece of meat or a pouch. The term is used in informal, sexual, or joking contexts, often among peers or in adult conversation. It is vulgar and sexual, never neutral, and inappropriate in polite or formal settings.