ㄍㄡˇgǒuㄉㄡˋdòuㄉㄚˋㄎㄞkāi

  1. 取笑別人牙齒不全缺少幼學瓊林··身體》:狗竇大開。」

dog hole wide open (idiom)​; fig. gap caused by missing teeth (used mockingly)​