User blog comment:Battlefield4us/5 Days Left - The Beacon Prom anaylsis/@comment-186.188.82.1-20140719160904/@comment-28792888-20140721212831

OTP stands for One True Pairing (as far as I'm aware). An OTP is a pairing which you not only ship, but you ship wholeheartedly and would be hard-pressed to stop shipping.