Right, so here are some speech-contextual ideas about usage in AmE.
- Listen, dude, you have no idea what you're saying.
- Listen, man, you have no idea what you're saying. [basically the same thing.] These terms are used in addressing a single person; not a group of people.
For a woman:
- Listen, lady, you have no idea what you're saying.
- Listen, missy, you have no idea what you're saying.
- Listen, ma'am, you have no idea what you're saying. [high register]
comment: Unlike dude in man-to-man speech, the examples above are used in man-to-woman speech, but, do not convey the macho quality of dude, in the sense of dude being used essentially by men of equal rank addressing each other. The examples above are not used in woman-to-woman speech, with perhaps, the exception of missy, in the Southern US.
As far as I know, there is no term that is used as direct address in woman-to-women speech. That's because (and I am going out on a long limb here) women are not in the habit of challenging each other in the way men do.
Yes, of course, one woman could say to another "Look, bitch, [etc.]" but that would only be in a hyper-confrontational scenario that is not one where, in the case of men, dude would be used.
- these forms of address are used by speakers addressing one other speaker.
- they are not plural
- there is no form of address for woman-to-man or woman-to-woman speech using a female-only term and, I repeat, one does not exist since relationships between women are not like relationships between men, as a general rule.
Finally, in the plural, the military uses "ladies" to address troops, either all-male groups of military individuals or mixed groups. This is actually pretty funny, since, in the past, the word "men" would have been used. So, this ends up being a sort of indirect homage to women while also suggesting indirectly that the group of soldiers, etc. being addressed needs to get tougher.