Gilmore Girls2000

Luke:
Uh, listen, I just want you to know that I had a little talk with Jess earlier.

Lorelai:
You did?

Luke:
Yes, I did, and I really laid down the rules concerning him and Rory. Trust me, he now knows that I am going to be watching them every second they are together.

Lorelai:
Oh good.

Luke:
Yup.

Lorelai:
You know, they're together now.

Luke:
What?

Lorelai:
Oh yeah. 'I have to get a part for my car', 'I'm going to go study' - that's kid code for 'Meet me at the previously agreed upon location far away from my clueless uncle.'

Luke:
You're kidding me, right? You don't really think that... damn, they are. They're together. They used the kid code and now they're together.