all-or-nothing

adjective
UK /ˌɔːl ɔː ˈnʌθɪŋ/
US /ˌɔːl ɔːr ˈnʌθɪŋ/

Meaning you get everything or you get nothing at all.

The game was all-or-nothing, so the winner took the whole prize.


OTHER MEANINGS

2. A situation where there is no middle result.

It was an all-or-nothing deal: either we sold the house or we kept it.

3. Done with complete effort and no holding back.

She made an all-or-nothing attempt to finish the race.

4. A choice between complete success and complete failure.

The surgery was all-or-nothing for the patient.