September 13th Synergy is a term used by both Justin and Kris whenever either one of them is able to successfully guess what the other is thinking or when they both speak the same thought at the same time. Both Justin and Kris share the same birthday of September 13th, the former was born in 1998, where as the latter was born in 1999. This makes Justin exactly one year older than Kris. Justin coined this term after he and Kris said the exact same thought as one another aloud; after realizing they both share the same birthday, he exclaimed, "That September 13th Synergy my dude!"