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 ]