What people who are NOT from Chicago claim, only to make themselves look cooler/classier/more hood/more gangsta/ anything they want to portray, depending on the individual's preference. Basically, trying to make oneself look better. This phrase is used by people who are from the lame-ass surrounding suburbs, or even the northwestern most suburbs of Indiana in order to try to appeal to others and make themselves look more "worldly" and "Chicago-ish". They know their home towns are lame as fuck, so if it's within even a 150 mile radius of Chicago, they will claim Chicago to be their home, even if it is not.
People from the following towns often tell others that Chicago is their home: Orland Park, Calumet City, Lansing,
Chicago Heights,
Downer's Grove,
Merrillville, Indiana; Tinley Park, Oak Lawn, Homewood, Olympia Fields,
Blue Island, South Holland, Harvey, just to name a few. Basically, everyone wants to be a part of the greatest city in the world, but they can't be, because I'm sorry, but the surrounding suburbs ARE NOT Chicago! you can often tell if someone is lying about their place of origin when they say "i'm from chicago" and later you overhear them talking to a coworker, friend, stranger, etc. and they are talking about the house they own in Chicago Heights or Orland. Annoying as fuck.