A quadragon is a four-sided polygon. There are three words in English that mean the same thing: quadrangle, quadragon, and quadrilateral. Quadragon literally means four angles as does quadrangle. Quadrilateral literally means four sides. Some quadragons have special properties and special names: parallelograms, rectangles, rhombuses, squares, trapezoids, and kites, for example.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.