The immediate origin was from the
card game, Bridge. Grand slam means to take all 13 tricks in a
hand.
It has since come to take on other meanings, such as in tennis to
win all four major singles titles; the Australian Open, the French
Open, Wimbledon, and the US Open in one year. A grand slam in golf
is to win; Masters Tournament, U.S. Open, British Open, and PGA
Championship in one year. It is used in baseball to signify
hitting a home run with all bases loaded.
Chess, Curling, Rugby, and other sports each have a grand slam
definition of their own,
Denny's restaurant chain is famous for its Grand Slam breakfasts
consisting of various combinations of meat, eggs, bread, and
pancakes. We also cannot forget Grand Slam Pizza in Dripping
Springs, Texas.