its called slutwalk because (quote from their website, http://www.slutwalktoronto.com/):
On January 24th, 2011, a representative of the Toronto Police gave shocking insight into the Force’s view of sexual assault by stating: “women should avoid dressing like sluts in order not to be victimized”.
We are tired of being oppressed by slut-shaming; of being judged by our sexuality and feeling unsafe as a result. Being in charge of our sexual lives should not mean that we are opening ourselves to an expectation of violence, regardless if we participate in sex for pleasure or work. No one should equate enjoying sex with attracting sexual assault. "
I think thats quiet a good thing to ask for.