k8d8
A date (d8) with Kate (k8) can be abbreviated as k8d8. A double date involving two Kates can also be called a 2k8d8.
Person 1: What are you up to tonight?
Person 2: k8d8. You?
Person 1: Nice. Also k8d8!
Kate: Do you want to go out?
Person: Yes. Is it a k8d8?
Kate: A k8d8 it is!
Person 2: k8d8. You?
Person 1: Nice. Also k8d8!
Kate: Do you want to go out?
Person: Yes. Is it a k8d8?
Kate: A k8d8 it is!