A plunger is a simple tool used to clear clogs in drains and toilets. It consists of a rubber suction cup attached to a long handle. When pressed down and pulled up, the suction cup creates a vacuum that helps dislodge blockages, allowing water to flow freely again. There are different types of plungers, including the standard cup plunger and the flange plunger. The flange plunger is specifically designed for toilets, featuring an extended rubber flap that fits into the toilet's drain. Using a plunger effectively can save time and prevent the need for professional plumbing services.