To risk everything in a final, all-out effort to solve a problem or achieve a goal.
Examples:
- I'm going to have to go for broke and put everything we have into this deal.
- With no options left, the founder decided to go for broke and pitch to the biggest investor in the room.
Origin: Military in origin, from a Hawaiian pidgin expression meaning 'to wager everything.'
Synonyms: shoot the moon, risk it all, put everything on the line