Lorelai: (to Richard and Emily) Are you two completely out of your mind? There is a ceremony going on in there. Young girls in ugly dresses and stupid fans are parading around in circles for God knows what reason, and you two are ruining it.
Rory: Before I knew it, Grandma was telling me how important it is for a person to be properly presented to society.
Rory: And how every young girl dreams of this day.
Rory: And how there are flowers.
Lorelai: Oh, Lord!
Rory: And music.
Rory: And cake.
Lorelai: Oh yeah, the cake's actually good.
Christopher: No, it's actually pretty interesting. I'm working for this firm that helps those overblown tech companies scale back and stay afloat now that they're facing leaner times.
Lorelai: I'm sorry, uh, what's the interesting part?
Christopher: We dress like superheroes when we do it.
Christopher: Well, did you tell her about Barbara Hutton, Doris Duke, Gloria Vanderbilt?
Lorelai: Yes, and she's perfectly willing to marry Cary Grant, get offed by her crazy butler, and start designing blue jeans as soon as the ball ends.
Rory: And when I got back from Grandpa's office, they all invited me out onto the patio.
Lorelai: No no no, please tell me you did not go out onto the patio.
Rory: I went out onto the patio.
Lorelai: Ugh, Rory, that's like accepting the position as the drummer in Spinal Tap.
Lorelai: Rory, do you know what a coming out party says?
Rory: It says I'm a woman now.
Lorelai: No. It says, 'Hi, I'm Rory. I'm of good breeding and marriageable age, and I will now parade around in front of young men of similarly good breeding and marriageable age so they can all take a good long look at me.'
Rory: You're exaggerating.
Lorelai: No, it's like animals being up for bid at the county fair, except sheep don't wear hoop skirts.
Luke: How can you like that shirt?
Jess: It brings out my eyes.
Christopher: May I have this dance?
Lorelai: I don't know. Do you have a trust fund? (to Rory) Always make sure.
When Lorelai calls Chris, she writes his new number on a gum wrapper. The shot moves to Rory and when it cuts back to Lorelai, she is reading the number off of a notebook.
At Luke's after the ball, Rory's hamburger constantly changes from being bitten into to whole between shots.
At the debutante ball, Lorelai is wearing a necklace when she talks to Emily and Richard but isn't wearing it during the other parts of the ball.
Lorelai: Oh Shecky, you kill me.
Shecky Greene is a well-known comedian.
Lorelai: Hey! Nobody puts Baby in the corner.
Lorelai is quoting a line from the movie Dirty Dancing. Coincidentally, Kelly Bishop (Emily) played the mother in the film.
Lorelai: Does Terence McNally know about you two?
Terence McNally is a playwright who's works include Ragtime, Corpus Christi, and Andre's Mother.
Lorelai: Okay, Liesl. I'm Brigitta, this is Gretl.
Lorelai is referencing The Sound Of Music in which the von Trapp daughters are named Liesl, Brigitta, and Gretl.
Lorelai: That's like accepting the position as the drummer in Spinal Tap.
In the 1984 Rob Reiner movie This Is Spinal Tap, the drummers for the fictional metal band Spinal Tap die in freak accidents and explosions.
Lorelai: I think George and Martha are joining us for dinner.
George and Martha were the alcoholic, argumentative couple from Who's Afraid of Virginia Woolf.