A hamburger menu, also known as a three-line menu or a side menu, is a graphical user interface element that is commonly used in mobile applications and websites. It consists of three horizontal lines stacked on top of each other, resembling a hamburger, hence the name. When clicked or tapped, the hamburger menu expands to reveal a list of navigation options or additional features, allowing users to access different sections of the app or website without cluttering the main interface. The hamburger menu has become a popular design choice for its simplicity and space-saving capabilities, making it a convenient and user-friendly way to navigate through digital content. However, it has also sparked debates about its effectiveness and accessibility, with some arguing that it can be confusing for users and should be replaced with more visible navigation options. Overall, the hamburger menu remains a widely recognized symbol for hidden menus and continues to be used in various digital platforms.