In plain words
The girls cry: "He churned up the wide pool spread with lotuses, seized the venomous serpent [Kāḷiya] by the tail and dragged it, leapt up onto its hooded head spread wide in anger and swayed his body there in dance: today is the end of us! He stood on its crown [until the serpent, spent, fell at his feet for refuge]: today is the end of us!"