This is a term used to describe a non-fictional Utopia. Where a certain location or establishment gives one a "warm, fuzzy feeling inside" is known as Chicargo. Commonly used for nightclubs and bars where joust is rampant.
"Man, this place is full of DFN, luke froths over me, I get free drinks and I can urinate where I please, I feel like i'm in heaven"
"We aren't in heaven yet, but as close as one can get while still on Earth, we're at Chicargo! Froth Mcgregors, joust city!!"