"beat" is a good, all-purpose slang word. Also, in Philadelphia, "jawn" is pretty widespread, as a slang version of "thing." I don't like "pocketbook" for "purse," though. It makes some sense (purses generally have lots of little pockets and zippers), but the pronunciation annoys the hell out of me here. Philadelphians make it sound like "pockabook" and that is just awful.
Who wants to try a bottle of merc's "Extroversion Olive Oil?"
I say "Dude" and "Bro" a lot IRL. I also use "fucktard", and after reading an entry in ByMySwords blog, I picked up "Douche-cock", in fact I used on someone just earlier today.
It's been a long one.
I'm a fan of "fucktard", but I've also picked up "asscrumpet" from school folk, and "asshat" from Customers Suck at livejournal.
Recently, I've discovered "cockbite" from Red vs. Blue.
But in terms of regional dialects, I grew up in the south. So, my vocabulary is peppered with things like "Y'all" and "I'mago" (which translated out to "I'm going to go and do...")
Then, of course, there are the foodstuffs that I talk about that instantly get the southern accent out. (I live in British Columbia now, so I've learned to repress the accent a bit so that people listen to what I'm saying and not the accent.) If I start talking about fried yellow squash, fried green tomatoes, and fried okra, it comes right out again.
"If you can't be a good example, you'll just have to serve as a horrible warning." Catherine Aird