“Immoral behavior” doesn’t quite get the whole idea. The concept is that certain forms of immoral behavior are specially encouraged as aspects of manliness, often in a way that masks the problems from the men engaging in it that behavior. Plus the term can also apply to behavior that isn’t immoral per se, but has a strong tendency to cause problems.
I don’t think there’s really any way to distill that into a term that isn’t going to be misinterpreted and doesn’t require people to actually read and try to comprehend what’s going on.
