A false charge of rape being one where the police decide to press charges against the accuser, it becomes obvious that the accuser knew the charge was false.
In a lot of arguments on MMOC people are discussing rape and it invariably comes up that women falsely accuse men of rape. How frequently do you think this happens?
I also considered asking the question 'do you think you'll be falsely accused of rape during your lifetime' but I figured everyone would say no. Maybe I'm wrong on this.