Text Jynx
When two people text each other simultaneously, especially when saying essentially the same thing.

Optional: The first person to text back gets a reward of his/her choosing.
Text from A to B @ 9:42pm: You doing anything tonight?
Text from B to A @ 9:42pm: What you up to tonight?
Text from A to B @ 9:43pm: Text jynx. You owe me a beer. Yes!