1. n. [acronym: `Window, Icon, Menu, Pointing device (or Pull-down menu)'] A graphical-user-interface environment such as X or the Macintosh interface, esp. as described by a hacker who prefers command-line interfaces for their superior flexibility and extensibility. However, it is also used without negative connotations; one must pay attention to voice tone and other signals to interpret correctly. See menuitis, user-obsequious. From Jargon Dictionary