BOOTSY: This goes way beyond the Jess matter, Taylor. Luke’s been on my case since the first grade when he wrongfully accused me of sabotaging a clay imprint that he made of his hand.
LORELAI: Ooh! Think hard, was he dressed like Sulu?
Lieutenant Hikaro Sulu is a character in Star Trek, played by George Takei in the original series. He is the ship’s physicist, third officer, and senior helmsman. He wears the same uniform as everyone else, so I’m not sure what Lorelai means about “dressed like Sulu”, unless she means “dressed like a Star Trek crew member”.
We now learn that as well as having an antagonistic relationship with Taylor, Luke also has a long-standing problem with Bootsy, his former classmate, going back to first grade. How many enemies does Luke really need?
The Annotated Gilmore Girls 