The term 'plunger' can refer to several different things. A dasher is a tool used to mix ingredients, such as in baking or making ice cream. A DIVER is someone who swims underwater for recreation or work. A RAM is a tool used to drive objects into the ground, such as when constructing a building. Finally, a plumbershelper is a tool used by plumbers to unclog drains and pipes. All of these tools are referred to as plungers because they are used to push or plunge something into a material.