으면 죽다

if that happens, you're dead

A conditional plus 죽다 'die'. Sometimes it is literal, or literal within a game: 이거 뽑으면 죽어! 'pull that out and you die!', 공격받으면 죽는 건 당연하잖아 'of course you die if you get attacked'. Often it is hyperbole for not coping — 없으면 죽어요 'I'd die without it'. 죽으면 죽는 거야 'if I die, I die' is flat resignation. Watch that 좀 있으면 is a time phrase, 'in a little while', not a condition.

Register: casual, often hyperbolic