make-or-break defense

noun phrase
UK /ˌmeɪk ɔː ˈbreɪk dɪˈfens/
US /ˌmeɪk ɔːr ˈbreɪk dɪˈfens/

A defense that decides if you win or lose.

The team's make-or-break defense stopped the other side from scoring at the very end.


OTHER MEANINGS

2. A crucial protective strategy that determines whether a plan succeeds or fails.

The company's make-or-break defense against the lawsuit was its stack of signed contracts.

3. A final, all-important effort to protect something from harm.

The villagers formed a make-or-break defense of the bridge against the flood.

4. In sports, a defensive play or series that decides the outcome of the game.

Their make-or-break defense in the last minute sealed the championship.