Dictionary.com
definitions

Fat City

or fat city

See more synonyms for Fat City on Thesaurus.com
noun Slang.
  1. an easy and prosperous condition or circumstance: With a new house and a better-paying job, she's in Fat City.

Origin of Fat City

First recorded in 1960–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Idioms and Phrases with fat city

fat city

Also, Fat City. A condition or circumstance marked by considerable prosperity or having a superior advantage. For example, With that new job she'll be in fat city. [Slang; 1960s] Also see easy street.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.