- burn\ one's\ boats
- • burn one's bridges• burn one's boatsv. phr.To make a decision that you cannot change; remove or destroy all the ways you can get back out of a place you have got into on purpose; leave yourself no way to escape a position.
Bob was a good wrestler but a poor boxer. He burned his boats by letting Mickey choose how they would fight.
When Dorothy became a nun, she burned her bridges behind her.
Словарь американских идиом. — СПб., Изд-во "Лань". Оригинал: A.Маккей, М.Т.Боткер, Дж.И.Гейтс. 1997.