Sentence examples for do-or-die from inspiring English sources

The word 'do-or-die' is a correct and usable phrase in written English.
It is often used to describe a situation which is extremely critical and requires one's full commitment and determination to succeed. Example: The team knew it was a do-or-die situation in the final minutes of the game. They had to score a goal to win or else they would be eliminated from the tournament.