do or die (The politician believes his party must do or die in the election. – Политик понимал, что партия должна получить всё или ничего на этом голосовании.); play an all-or-nothing game; stand or fall; double or nothing (Anglophile); hit or miss (lijbeta); Here goes nothing (NumiTorum); win or bust (Used to indicate that a supreme effort will be made to achieve the stated goal, with utter failure as the only alternative: ‘it's gold medal or bust for both of our basketball teams'

‘tomorrow's game is quite simply win or bust for both teams' Bullfinch)

Игорь Миг

zero sum

amer.

Hollywood or bust (staking total success or failure on one high-risk event 4uzhoj)

austral., nief.

Sydney or the bush

brytań.

double or quits (Anglophile)

idm.

Hell or high water (Yippie); there is no in between (Abysslooker); risk all in a single bet (Sloneno4eg)

nief.