A "doormat" is a piece of material, often made of coir, rubber, or fabric, placed at the entrance of a home or building. Its primary purpose is to clean shoes before entering, helping to keep indoor spaces tidy. Doormats can also serve as a decorative element, featuring various designs, colors, and messages. In a figurative sense, the term "doormat" refers to a person who allows others to take advantage of them or treat them poorly without standing up for themselves. This usage highlights the importance of setting boundaries and asserting oneself in relationships and social situations.