Someone who's roly-poly is small and round. Your fat little Corgi puppy is extra adorable because she's so roly-poly.

A chubby baby, with dimpled elbows and fat little legs, could be described as roly-poly. When you use this word as a noun for a plump person, it's especially derogatory, but the baby bears at the zoo won't mind being called roly-polies. When someone talks about a roly-poly bug, they mean a pill millipede or a woodlouse, a small insect that can protectively roll itself into a ball.

Definitions of roly-poly
  1. adjective
    short and plump
    synonyms: dumpy, podgy, pudgy, tubby
    having an (over)abundance of flesh
  2. noun
    a rotund individual
    synonyms: butterball, fat person, fatso, fatty
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    scrag, skin and bones, thin person
    a person who is unusually thin and scrawny
    type of:
    large person
    a person of greater than average size
  3. noun
    pudding made of suet pastry spread with jam or fruit and rolled up and baked or steamed
    synonyms: roly-poly pudding
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    type of:
    any of various soft sweet desserts thickened usually with flour and baked or boiled or steamed
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