I’m often startled with, and at the same time enjoy finding unordinary expressions and
 quotes in Maureen Dowd’s column in New York Times. But I batted my eyes
when I saw the actress, Susan Sarandon’s line, “You can’t just vote
 your vagina,” Dowd quoted in her August 20 NYT article under the title,
“Bill’s turns at bat.”

<http://www.nytimes.com/2013/08/21/opinion/dowd-bills-turn-at-bat.html?hp&_r=0>

> 
> “Bill de Blasio, the 52-year-old public advocate has spent the last
>  few days surrounded by the liberal glitterati of New York: Cynthia
>  Nixon and her wife; “Boardwalk Empire” king Steve Buscemi; and
>  ping-pong queen Susan Sarandon, who said she decided not to support
>  Christine Quinn because “**you can’t just vote your vagina**.”
> 
> 
> 

I’m confounded with the word; “vagina” being used in reference to vote and political decision and made by a female celebrity. What on the earth does it mean? Does it mean you can’t vote for someone simply because of the candidate being the same sex?

Are such rhetorical and public remarks as “you can’t just vote your vagina” accepted as a matter of course today?