noun
[ sing. ] ( informal ) a situation in which either of two choices, results, etc. is equally possible :
'Have you decided on the colour yet?' ' It's a toss-up between the blue and the green.'
noun
[ sing. ] ( informal ) a situation in which either of two choices, results, etc. is equally possible :
'Have you decided on the colour yet?' ' It's a toss-up between the blue and the green.'
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005