Not normal for ten-year-old girls, in my experience. It might be normal among pre-teen boys in the context of all-male sports and camps (based on my experience working with that age group in recreation contexts), but I have never heard it from girls and have never heard my eleven-year-old boy and/or his friends speak that way in front of girls or adults, even when they think I'm not paying attention.
That said, what's "normal" in this regard will vary based on socioeconomic and cultural factors. If one of the daughter's friends is hearing crude jokes about body parts from adults in her life, from older brothers, or on social media, she may not realize that this kind of talk is trashy, unsophisticated, and hostile to women in that it tends to objectify bodies and promote an over-sexualized environment. This should be explained to girls and boys alike, with the core message being that if they choose to talk that way, they should do so only in locker rooms, and only if they want to sound juvenile.
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