I don't know about anyone else from Massachusetts, but I am so guilty of saying "wicked" ALL THE TIME. I've been saying it for as long as I can remember, and my relatives from out of state continually rag on me about it.
But one I don't get is "wicked pisser"... when I moved towards the south-eastern part of the state to start college, all the kids from Boston were like "that's wicked pissah dude..." meaning that's really cool (and yes it's pissah... this is Boston we're talking about...
)