When somebody repeats something that has just been said during the course of a conversation.
When a Jay Move occurs, it is necssary for everyone around to look over and say "Woooooooooooow Jay!"
It is equal to an Epic Fail in common conversation.
1. Joe: Did you know penguins live in Antartica?
Bob: No, I did not. What a priceless peice of information I have just obtained.
Ten seconds later...
Jay: Did you know penguins live in Antartica?
Joe/Bob: Woooooooow Jay!, what a Jay move you just pulled!
2. Stu: Gee whiz, I sure am hungry..
Ted: Let's go to McDonalds
Frank: I'm hungry guys, let's go to McDonalds.
Stu/Ted: Woooooooow Jay! What a huge Jay Move!!