/ Dictionary / Index F Fat City: Meaning and Definition of Find definitions for: Fat' Cit'y Pronunciation: [key] — Slang. Slang. an easy and prosperous condition or circumstance: With a new house and a better-paying job, she's in Fat City. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fat cell fat depot Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language