butterball

from WordNet (r) 3.0 (2006)

butterball
    n 1: a rotund individual [syn: {fatso}, {fatty}, {fat person},
         {roly-poly}, {butterball}] [ant: {scrag}, {skin and bones},
         {thin person}]
    2: small North American diving duck; males have bushy head
       plumage [syn: {bufflehead}, {butterball}, {dipper},
       {Bucephela albeola}]

from The Collaborative International Dictionary of English v.0.48

Butterball \But"ter*ball`\, n. (Zool.)
   1. The buffel duck.
      [1913 Webster]

   2. a fat person or animal. [informal]
      [PJC]

   3. a lump of butter rounded into a ball.
      [PJC]

   4. [Trademark] a plump chicken or turkey prepared for
      cooking.
      [PJC]

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