Gurge is a term used to describe a type of wave that is created when two opposing currents meet. It is also known as a hydraulic jump, and it is characterized by a sudden rise in the water level and a rapid increase in velocity. The term 'gurge' comes from the French word for 'WHIRLPOOL'. EDDY is a four-letter solution to the crossword clue, and it is an alternate name for a gurge. An EDDY is a circular current of water that moves in a direction opposite to the main current. Eddies are often found in rivers and streams, and they can cause turbulence and disruption to the flow of the water.