roly-poly, n. & adj.
--n. (pl. -ies)
1 (also roly-poly pudding) a pudding made of a strip of suet pastry covered with jam etc., formed into a roll, and boiled or baked.
2 US a tumbler toy.
3 Austral. a bushy plant, esp. Salsola kali, that breaks off and is rolled by the wind.
--adj. (usu. of a child) podgy, plump.
prob. formed on ROLL