fat·​so ˈfat-(ˌ)sō How to pronounce fatso (audio)
plural fatsoes
informal, disparaging + offensive
: an overweight person

Word History


probably from Fats, nickname for a fat person + -o

First Known Use

1944, in the meaning defined above

Time Traveler
The first known use of fatso was in 1944

Dictionary Entries Near fatso

Cite this Entry

“Fatso.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fatso. Accessed 6 Feb. 2023.

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