LORELAI: [from upstairs] Rory? … Toute de suite, and I don’t mean the candy.
Toute de suite, French for “immediately, right away”.
Lorelai makes a pun on “Toot Sweets”, a song from the British 1968 family musical fantasy film, Chitty Chitty Bang Bang, directed by Ken Hughes, and screenplay by Roald Dahl, loosely based on the 1964 novel by Ian Fleming, Chitty-Chitty-Bang-Bang: The Magical Car. The film stars Dick Van Dyke as a widowed inventor named Caractactus Potts raising two children.
While trying to raise funds, Potts tries to market several failed inventions, including a musical hard candy you can whistle, which only turns out to attract stray dogs. It is that point that he and many others of the cast sing “Toot Sweets”. Later, Potts is able to become rich by selling the idea to a sweets maker, who markets them as Woof Sweets.
A real candy you could whistle called Melody Pops began being manufactured in the UK in the 1970s, seemingly inspired by Toots Sweets.
Chitty Chitty Bang Bang was adapted into a musical for the London West End in 2002, and became a Broadway production in 2005.
The Annotated Gilmore Girls 