My platonic female friend (I am also female) has been flirting with me almost non-stop. We’ve been friends for a very long time, and I’ve made it clear that I’m only interested in men. I admit that I’m disgusted to think of her romantically, but she really can’t take the hints that I’m giving her. This isn’t something I’d like to stop our friendship over, but how would you suggest that I get her to stop?
LemonVibe 
I’m thinking that of my two best girlfriends (friends who are girls) that we constantly tease each other like we are flirting, but know for certain that we are not. I’m sure since you’ve told her that you are not comfortable that she should understand this.
You can keep telling her kindly that this conversation is not ok/akward each time until she gets the message like a broken record.
You can change the subject every time.
You could bring up men every time when she does this (also a topic changer.)
Hope that helps so that you can keep your friendship and have her cut out the flirting.
Don’t hint. Directly tell her how you feel and let her know what makes you uncomfortable. If she values the friendship, she will stop.