Yeah, 20 dudes is rookie numbers

Yeah, the fact that OP mentioned being at a party was sus. Nobody who posts on 4 Chan is ever invited to parties.

I worked at a university and I heard women call each other "bro" all the time.

Dude for me is genderless, but it's not a label everyone can fit into, you gotta be chill.

Depends on the context.

"Hey Brian, were you making out with a dude last night!?"

"Haha, no, that was Annie, she's a chick, she just has short hair."

Dude(s) and Guy(s) can be gender neutral or male-only. Girl can mean a female child, or it can mean a woman, depending on the context.

Whatever you say, girliepop

This. I've got a fair few trans friends, and we're all in agreement - unless it's obvious we're talking in gendered terms based on context, "dude", "man", "bro", etc are just interjections, not reference to someone's gender. And, when we are talking in gendered contexts, we tend to be pretty clear about that.

Idk about the rest of it but dude and guys can totally be gender neutral and i hate people that dont get that. Its such a bitchy thing to get mad about

I'm a dude. He's a dude. She's a dude. We're all dudes!

"Fuckos" for informal situations

Sure, but we're talking plurals of strangers atm. "Please don't call me a guy going forward" is a different conversation than "what you just said is stupid, mean, and wrong".

Or, just maybe. The person remarking is an asshole. It gives off the same energy as correcting grammar when talking with someone.

Alternatively, if a woman asks you not to call her a guy or a dude, respect that.

Accidentally Australian /j

Man... I'm sorry.