Waterspout of dragon, as in popular imagination. Very violent wind storm at sea or on land. It carries away huts and raises high waves or water columns.
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Rồng đen lấy nước thì nắng, rồng trắng lấy nước thì mưa (black, dragon sucking water, sign of sunshine; white dragon sucking water, sign of rain - “dragon” designates a rushing column of cloud).