burn (one's) boats(redirected from burn our boats)
burn (one's) boats
To do something that cannot be easily undone or reversed in the future. Primarily heard in UK, Australia. I think you burned your boats when you announced you were quitting and proceeded to insult your boss in front of the whole staff. She's young, so I don't think she realizes that she'll be burning her boats if she goes to work for their competitor.