When a vagina hasn't been used in a very long time, it turns a greyish-purple color, shrivels up and tends to fall off if not treated with at least ten cans of bounce dat ass immediately.
girl: "Oh my god, I have vagina depression!"
guy: "Hurry, I have ten cans of bounce dat ass on me.
girl: "Really, where?
guy: "On the south pole!"