The word "fatcity" is spelled as /fæt'sɪti/, with a stress on the first syllable. The root word "fat" means plump or overweight, while "city" refers to a populous urban area. Combining the two creates a phrase meaning a place or situation of great prosperity and abundance. This phrase is commonly used in American English, though its origins are unclear. The spelling of "fatcity" is straightforward, with no unusual consonant clusters or silent letters.
The term "fat city" originated in American slang in the mid-20th century and has its roots in African-American Vernacular English (AAVE). It was commonly used in jazz and blues circles in the 1940s and 1950s to describe a state of prosperity, success, or abundance. The exact etymology of the word is not entirely clear, but it likely evolved from the phrase "in the fat of the land", which means to live in comfort and luxury. Over time, "fat city" became a standalone term to convey a similar meaning.