Burn your bridges
يعني القيام بفعل ما يجعل من المستحيل العودة إلى الحالة السابقة، ويقابله في العربية: "أحرق سفنه".
أمثلة على الاستخدام:
When the troops retreated from the area, they were sure to burn their bridges behind them.
I think you really burned your bridges 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 bridges if she goes to work for their competitor.