Just tried this thing called Hardtack, which is basically a cracker/buscuit thing that's about as hard as rock. Made with flour, salt and water, baked at 375 for 30 minutes on each side. Lasts for years. Not bad.
According to the Wiki, she's actually 15. Ruby didn't actually say that line in Chibi either. That was just Winter's idea of how young people talk. Also, it's just a picture of an action figure. Nothing inappropriate.