What is what does it mean to pop your cherry?

"Popping your cherry" is an idiom, often considered a euphemism, for experiencing sexual intercourse for the first time. It is commonly used to refer to a person's first sexual experience, particularly when that person is a woman. The phrase derives from the idea that the hymen, a membrane that can partially cover the vaginal opening, is broken or stretched during the first instance of vaginal penetration.

It's important to understand that the hymen is not always a reliable indicator of virginity. It can be affected by activities other than sexual intercourse, such as exercise, tampon use, or even medical examinations. Additionally, some people are born without a hymen, or it may have already broken before their first sexual experience. The term is also considered to be gendered because it is more commonly used when talking about women.