The word "gurgler" is commonly used to describe a device that is typically used for fly fishing. However, there are several synonyms for this term that can be used interchangeably. Some of these synonyms include popper, darter, diver, chugger, and slider. Each of these terms refers to a type of fly that is designed to attract fish with its unique movements and sounds. Popper flies create a splashing sound on the surface of the water, while darter flies mimic the movements of a small fish. Diver flies are designed to sink below the water's surface and attract fish from deeper depths, while chugger and slider flies create a sliding or chugging motion on the surface of the water.