The Collaborative International Dictionary of English v.0.48:

Rolly-poly \Roll"y-po`ly\, n.
   A kind of pudding made of paste spread with fruit, rolled
   into a cylindrical form, and boiled or steamed. -- a. Shaped
   like a rolly-poly; short and stout. [Written also
   roly-poly.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Roly-poly \Ro"ly-po`ly\, n. & a.
   Rolly-poly.
   [1913 Webster]

WordNet (r) 3.0 (2006):

roly-poly
    adj 1: short and plump [syn: dumpy, podgy, pudgy, tubby,
           roly-poly]
    n 1: a rotund individual [syn: fatso, fatty, fat person,
         roly-poly, butterball] [ant: scrag, skin and bones,
         thin person]
    2: pudding made of suet pastry spread with jam or fruit and
       rolled up and baked or steamed [syn: roly-poly, roly-poly
       pudding]