fatso

noun
fat·​so | \ ˈfat-(ˌ)sō How to pronounce fatso (audio) \
plural fatsoes

Definition of fatso

informal, disparaging + offensive
: a fat person

First Known Use of fatso

1944, in the meaning defined above

History and Etymology for fatso

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

Keep scrolling for more

Learn More about fatso

Statistics for fatso

Look-up Popularity

Time Traveler for fatso

The first known use of fatso was in 1944

See more words from the same year

Keep scrolling for more

More Definitions for fatso

fatso

noun

English Language Learners Definition of fatso

informal + offensive : a fat person

Comments on fatso

What made you want to look up fatso? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

not to be persuaded, moved, or stopped

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Latin Quiz

  • roman forum
  • Which of the following months comes from a Latin word for “ten”?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Citation

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!