dingo UK /ˈdɪŋɡəʊ/US /ˈdɪŋɡoʊ/verb 3noun 2forms 4 verb3 •(Australia, informal) To renege on an agreement or situation. •(Australia, informal) To let down another individual. •(Australia, informal) To behave in a cowardly or treacherous manner. noun2 •A wild dog native to Australia (Canis familiaris, Canis familiaris dingo, Canis dingo, or Canis lupus dingo).Dan was beginning to feel very depressed when suddenly the eerie howl of a dingo rang out[.] — 1943 •(Australia, informal) A cowardly or otherwise despicable person. formsdingoed · dingoing · dingoes · dingos