fatty vs roly-poly

fatty and roly-poly both are nouns.

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

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

Other synonyms of fatty include butterball, fat person, fatso.

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

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