Uptown raises a good point. 
In the modern vernacular, it appears bro has eclipsed "dude." What about "man?" Do the you  whippersnappers still use -- man? Or has bro gotten that as well? 
I'm still a "man" and "dude" man myself. Even use the ironic groovy from time to time. But I would feel like some old poseur trying to be all bro-hip. 
Duuude!
Charon