ㄆㄛˋㄎㄡˇkǒu

  1. 惡言咒罵他人喻世明言··張道陵》:如今人為錢鈔兄弟分顏朋友破口。」拍案驚奇·○》:這樣倚仗公子勢利便欺負破口!」

tear or rupture, to have a tear (e.g. in one's clothes)​, without restraint (e.g. of swearing)​