( AustralE , NZE , informal ) used to suggest that sb has little or no hope of achieving a particular aim
NOT HAVE BUCKLEY'S (CHANCE)
Meaning of NOT HAVE BUCKLEY'S (CHANCE) in English
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005