IDIOMS

chill girl

(slang, Internet, usually pejorative) A woman who denies or dismisses sexism and/or misogyny.

Example: 2012 March 7, Katie Rogers, “On Stealth Feminism”[1], The Cipher:
  We can talk about sex in front of her, don’t have to get the door for her. You know, she’s a chill girl. She’s a bro.
2013 April 2, “Feminism and the Chill Girl”[2], Sidkettle's Blog, retrieved 2013-10-22:
  Since Chill Girl is not actually an avatar of Women, she does not have the power to hand out get out of saying-crap-about-women-jail-free cards. It’s not secret!not-sexist because your girlfriend laughed.
2013 October 15, Eseld Bosustow, “Lady MRAs: What's going on with THAT?”[3], Coquettish Colloquies, retrieved 2013-10-22:
  But lady MRAs take being a chill girl to a whole new level.
For more examples of usage of this term, see Citations:chill girl.
Used other than as an idiom: see chill,‎ girl.