The title is from the 1925 song "Tea for Two" by Vincent Youmans with lyrics by Irving Caesar from the musical 'No, No, Nanette'.
A divot is a piece of ground that's been removed by the action of a golf club or a polo mallet. It is considered good etiquette to tamp the divot back into the earth after play has finished.
During the postwar years, golf, once a game for the rich and famous, became hugely popular among the U.S. middle class. Its popularity would extend over the years across the globe.