Cue "I Will Survive" - Contessa Brewer has been called "slutty" in public and lived to tell. Which apparently explains her incredulity at anyone, such as Sarah Palin, objecting to such a characterization. It's just comedy!
Maybe that's not an issue on the left. But I don't recall anyone on the left calling Bill Clinton or Nina Burleigh slutty. At least if they'd called Clinton slutty they could say they weren't being sexist. (and if he doesn't merit this, what does it take?)
I know nothing of Contessa Brewer's conduct, and I'm only quoting her from a video above. But somehow it wouldn't bother me a bit if Googling "slutty" showed Contessa Brewer at the top of the list.