Justin's law refers to the tendency of impressive feats performed by an individual to occur unwitnessed by others. In some formulations, Justin's law is extended to include an individual's inability to recreate the feat when observed by the group.
Someone who thinks they are in a secret group but in reality they are a twink. This person is willing to do anything, to include sexual favors, to be accepted.
The boy thought he was sitting at the adults table until he was notified he had JustinLaFavers syndrome. Now he sits in the dark corner of Swinging Richards