1)The dick, or penis, or male genitalia, of Sir Albus Dumbledore of the Harry Potter book series or Harry Potter movies. Rumored to be over 7.6 inches in length (non-erect).
2)Used to describe someone who believes they are always correct and know everything when it is obvious they don't.
Dumbledism is the art of believing in a world where only wizards exist and that death is the passage that transports you to the wizarding world of Harry Potter.
The Dumbledists preach their god Dumbledore and their Queen J.K. Rowling. They seek a universe without any trace of You-Know-Who.
"We solemnly swear that we're up to no good. Always, until the very end." Thus is the Dumbledism's motto.
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.