burn boats

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Related to burn boats: burn bridges

burn your boats

  (British & Australian) also burn your bridges (British, American & Australian)
to do something that makes it impossible for you to change your plans and go back to the situation you were in before She didn't want to burn her boats by asking for a divorce, so she suggested a trial separation instead. I'd already burned my bridges with my previous employer by publicly criticizing their products.
See burn fingers
See also: boat, burn