WordNet (r) 3.0 (2006):

bunya bunya
    n 1: Australian conifer bearing two-inch seeds tasting like
         roasted chestnuts; among the aborigines the tree is
         hereditary property protected by law [syn: bunya bunya,
         bunya bunya tree, Araucaria bidwillii]
    2: nut tasting like roasted chestnuts; a staple food of
       Australian aborigines