fluffy
According to Wikipedia: "Macdonald's time with Saturday Night Live effectively ended in late 1997 when he was fired from the Weekend Update segment upon the insistence of NBC West Coast Executive Don Ohlmeyer, who pressured the producers to remove him, explaining that Macdonald was "not funny." Some believe that Don Ohlmeyer's friendship with O.J. Simpson — a celebrity whom Macdonald often antagonized on the show — may have fueled Ohlmeyer's decision."

Big Beef Burritos Supreme
Also, that it only aired once.