I don't know if I can get credit for supplying you with a link, but I stumbled upon your post while looking for a Russian equivalent to this word and my searches led me down a lot of different nooks and crannies to include this page right here:
Power Thesaurus entry for "badass"
Either way, I do realize I'm a bit late to this party, but hope it helps someone just the same.
By the way, I didn't look to see if "the bomb" was on the Power Thesaurus list, but if not, there's another one for you. (I see now that Kristina Lopez beat me to the punch on that one, but I second her suggestion.)