I think a lot of men fail to understand what the term rape culture is intended to describe. Additionally, a lot of them are also defensive about discussing rape as a class issue and shit at listening to women.
We can see on this thread that the male posters have only talked about rape whereas the women have talked about a whole spectrum of behaviors and phenomena. That is that the men have talked about rape whereas the women have talked about rape culture.
Women are, despite the minimization and normalizing of male sexualised violence and threats of male sexualised violence, unsurprisingly, quite sensitive to it. Because we have to be. We can never afford to turn our radar off and our spidey senses are constantly making assessments of everyday situations such as walking down the street, going on a date, being on a tightly packed train, being in a bar or a club, going to the doctor, at our work place, in our homes, etc. We are also, despite being constantly bombarded with them, sensitive to sexist images which display women as sex objects, prey, victims, enjoying sexualised violence or finding sexualised violence inevitable. These things are all propaganda for rape culture.
Rape culture is primarily about and reflective of socialization. It's about messages about sexualised violence as much as it is about the violence itself. The message is that women are the sex class and that sex is what we are for. Unless one gets one's head around this fundamental feminist analysis of society, one is unlikely to have a good understanding of what feminists mean by the term rape culture as it is built on the above analysis of girls and women as the sex class.
We have seen the dictionary definition a lot on this thread that describes rape culture as minimizing rape and sexual assault. It's a good enough definition but the male posters have failed to ask and or understand why rape culture minimizes sexualised violence and how it minimizes it.
Rape culture minimizes sexualised violence because otherwise there would be a fucking revolution and girls and women would be on the streets the world over protesting it and the female oppression that it is part and parcel of. Sexualised violence keeps girls and women in their place. It is, as feminists say, a tool of oppression.
As for the how rape culture minimizes sexualised violence, well that's been described by plenty of posters on this thread when we talk about the continuum of behaviors and society wide phenomena that teach women and men that sexualised violence and an atmosphere of sexualised violence is inevitable and normal (groping, cat calling, leering, flashing, rape jokes, pestering women and girls for sex, porn, prostitution, porny music videos, etc plus the massively high rates of rape and sexual assault).
The men on this thread seem fixated on the idea that rape culture is about rape when it is actually about culture (the clue being in the name).