The AV Club interviewed lexicographer Ben Zimmer on Jersey and Philadelphia slang some time ago, and one particular regional divide he talked about stood out to me. Zimmer said:
What’s cool about that is seeing the way New Jersey gets divided up by the New York sphere of influence and the Philadelphia sphere of influence; you can find a dividing line along the Jersey Shore where people talk about bennys and where people talk about shoobies.
And sure enough, we see that in SeeTweet. The map above shows tweets including the word shoobies. South Jersey and Philly (and even Baltimore and DC) show lots of talk about shoobies, but North Jersey and New York don’t. Unfortunately, there are too many other meanings for bennys to get a clear view of the opposite division, so I didn’t include a map for it.