roly-poly vs fatty

roly-poly and fatty both are nouns.

Word	Noun	Adjective	Verb	Adverb
roly-poly	Yes	Yes	No	No
fatty	Yes	Yes	No	No

As nouns, roly-poly and fatty are synonyms defined as:

Other synonyms of roly-poly include butterball, fat person, fatso.

roly-poly (noun)	fatty (noun)
pudding made of suet pastry spread with jam or fruit and rolled up and baked or steamed	a rotund individual
a rotund individual

roly-poly (adjective)	fatty (adjective)
short and plump	containing or composed of fat