Source: The Historical Records Meaning: A fight in which both sides are left seriously damaged. It i s generally used like the English expression "cutting each others 'throats," as one might say "let the two of them cut each others' throats, it will be to our advantage."
釋義：爭鬥雙方受損傷。出處：「史記．張儀列傳」：卞庄子欲刺虎，館豎子止之，曰：「兩虎方且食牛，食甘必爭，爭則必鬥，鬥則大者傷，小者死，從傷而刺之，一舉必有雙虎之名，卞庄子焉然．．．．一舉有果有雙虎之功。」