[Russ_Boston]

Cabinet is exactly correct for a RI milkshake. (milk and ice cream). In MA we use frappe for the same item.

Another RI slang is 'gagger'. This is a name for a particular type of wiener which is also referred to as a NY system wiener. It's basically a skinless hot dog with a meat sauce, mustard, diced onions and celery salt on a steamed bun.

We (I grew up in RI) use 'soda' for all types of pop (Pepsi etc.).

We also have a type of pizza that is served cold with just sauce. It has a relatively thick crust. Some people call it party pizza or also bakery pizza. It's kind of an appetizer type thing.

I'm sure I can think of more - It's a strange little state!