I was going to do a poll, but that would have limited people's personal expression.
My best description would be "mild pork fajitas" (mild because a vagina certainly doesn't smell really spicy, however it definitely smells salty with a mysterious "tangy" edge to it. I mentioned pork because I smell some kind of flesh).
I've heard all the jokes about a "fishy" smell, however I've never met a vagina that smelled like a fish. I grew up on the coast around tons of seafood (and stinking fisherman's docks) and vaginas have never triggered those memories or smells in my mind. Perhaps these people mean that vaginas might smell like some store-bought, frozen fish. Well, perhaps lobster could do it, if it had the right sauce. Vaginas definitely have a smell that is not easily duplicated. It's not like freshly cut grass or some types of chlorine smelling mildly like semen. In fact, I too often feel disgusted because something in the environment smells like semen. Why can't I walk into a garden that smells like p***y?
Until I was with a naked woman, I never understood the significance of boys going on "panty raids" in women's dorms and cabins. I heard that in Japan men can get womens' used panties out of vending machines.
Anyway, give me your nose's analysis.
), and a woman was saying that doing that is "unnatural, and a real woman should be happy with how her vagina smells like". While I personally never had any smelly issues, I still like to have it smell like rose petals. 
