smoking clover: n. [ITS] A display hack originally due to
Bill Gosper. Many convergent lines are drawn on a color monitor in
such a way that every pixel struck has its color incremented. The
lines all have one endpoint in the middle of the screen; the other
endpoints are spaced one pixel apart around the perimeter of a large
square. The color map is then repeatedly rotated. This results in
a striking, rainbow-hued, shimmering four-leaf clover. Gosper joked
about keeping it hidden from the FDA (the U.S.'s Food and Drug
Administration) lest its hallucinogenic properties cause it to be
banned.
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