AKA Garbage Dump.
Staten Island is a large garbage dump located South of Manhattan. All of the trash from Manhattan, Brooklyn, The Bronx, Queens, and some parts of New Jersey is transported there via the Staten Island Ferry, and dumped in a large pile in the center of the Island. This garbage then proceeds to rot, and can be smelled from the surrounding land masses.
The tribe of people that live there, known as Guidos, burrow into the piles of the garbage to form dwellings.
Martin: "What be that smell?"
Franklin: "Staten Island"