Square - Everything2.com
Square A square is a quadrilateral with 4 right angles and all sides the same length. It can also refer to a person who is just not hip. Old-fashioned and unappreciative of the latest fads and fashions. A square number is a number that can be written as x* Tue Apr 03 2001 at 20:04:54 The quality of being un-hip, or a person exhibiting that quality. The word was originally used in this sense by beats in the 1950s, but became widely used by the 1960s to pick on the wallflowers or others not up to the minute on the latest styles and trends. The glyphL7 forms a near-square, and came to be used...
Source: everything2.com