Английский словарь американских идиом - haul down one's colors

or strike one's colors {v. phr.} 1. To pull down a flag, showing you are beaten and want to stop fighting. * /After a long battle, the pirate captain hauled down his colors./ 2. To admit you are beaten; say you want to quit. * /After losing two sets of tennis, Tom hauled down his color./