The ones I still use are: He ain't got the sense God gave a goose. Let's book. Peace out. This place is deader than a door nail. He don't know whether to wind his butt or scratch his watch. Yes, I'm Southern, and these are just a sampling of the slang a lot of us still use around these parts.
Really? I've had some of my northern friends (New York and Rhode Island) tease me when I've said some of these in front of them. I'm not saying I don't believe you, just stating the reactions of some of my friends.
I have heard them here in New York. But I don't know about Rhode Island. It's one of those states that you'll miss if you blink while traveling through it, just like Delaware.