a frothy coffee drink (= one that is thick and full of bubbles) made by whipping together (= mixing very quickly for a long time) coffee powder, sugar and hot water, then adding this mixture to cold or warm milk so that the milk is at the bottom and the whipped coffee on top

Dalgona coffee is the Korean coffee drink taking the internet by storm. 椪糖咖啡是风靡互联网的韩国咖啡饮料。

A dalgona coffee is like a cappucino turned on its head. 椪糖咖啡就像是上下颠倒的卡布其诺咖啡。