Dogmanite

To be someone who asserts things to others without proving them too. Notorious for using the dude trust me defense or any number of fallacies to convince people of their bullshit. Often goes hand in hand with being very religous or anti-religious. This person will agree that you should believe in the inconvenient truth over pretty lies. But they'll get around this by conflating pretty lies with personal truth, either consciously or unconsciously.