When you phone your friend and tell them, "Pilot, your Titan will be ready in two minutes." Then you hang up without speaking anything else. Works better with FaceTime.
Ring Ring
Bro 1: "Hey bro, where you at?"
Bro 2: "Pilot, your Titan will be ready in two minutes."
click
Bro 1: "What? He hung up..."
Bro 3: "That was a Titanfall call man."