killian's law Share definition Flag Killian's law states: The more someone boasts about a particular trait or skill, the less likely it is that they possess it. Man, the pope talking about lies and transparency is a total killian's law. killian's law by Nonya Asole July 14, 2017 0 0 Get merch Get the killian's law mug. Buy Now — $32.95 See more merch