nail one's colours to the mast

Английский Язык - Английский Язык

Определение nail one's colours to the mast в Английский Язык Английский Язык словарь

To clearly show one's support for a side or opinion in a dispute

Этимология

() From the naval military practice of displaying one's colours (signal flags or insignia) from the mast of a ship during battle to show loyalty.