sugarbird Syllabification: (sug·ar·bird)Pronunciation: /ˈSHo͝ogərˌbərd/ (also sugar bird)Definition of sugarbird noun 1a southern African songbird with a long fine bill and very long tail, feeding on nectar and insects. Genus Promerops, family Promeropidae (or Meliphagidae): two species 2another term for bananaquit.sugarbird in other Oxford dictionaries Definition of sugarbird in the British & World English dictionary