LORELAI (to Luke): Look, Officer Krupke. She’s right at that table, right over there.
Officer Krupke is a character from West Side Story. Originally a 1957 Broadway musical, it was made into a 1961 film directed by Robert Wise and Jerome Robbins. West Side Story was the #1 film of 1961 and won ten Academy Awards, including Best Picture.
In the story, Officer Krupke is a gruff policeman responsible for law and order on his beat. In the film, the role was played by William Bramley.
West Side Story is an adaptation of William Shakespeare’s Romeo and Juliet, revolving around rival New York gangs. This is perhaps the first tiny hint that star-crossed young lovers will feature heavily in Gilmore Girls.