1. an ass that is fat
2. One who is fat in general
3. An insult shouted among annorexic girls when one of them breaks the 80 pound mark.
Synonyms for FATASS
On this page, you will find 30 slang terms related to FATASS. Some of the top words include: FATASS, fattie, watermellon, Dumas, Barge arse, and 25 more.
