I don't know, Mr. Rat. The far, far more acdemic and scholarly urbandictionary.com sort of takes exception to your claim:
According to The Chicago Tribune, Lake County is a included in the Chicago Metropolitan Area, but the TRUE region is located only in the Northwest area of Lake County IN; consisting of Whiting, East Chicago, Hammond, Munster, Highland, Griffith, Gary, and the North sides of Dyer, Shererville, and Marrillville. The South sides of Dyer, Shererville, and Marrillville along with St. John, Crown Point, Hobart, and Lake Station (aka Snake Nation) are only considered Semi-Region (People from there can still consider themselves “regionites,” but must bow down to anyone from the TRUE region).