Fúldya's law
The idea that you can make up a fake philosophical law, and as long as it has a legit sounding name people will believe you.
Guy 1: "Look up 'Fúldya's Law', it perfectly describes what happened yesterday." Guy 2: " Can you give me a link or something man? I cant really find it." (Insert rickroll link or a gay porn link disguised as a different link)