I have just encountered a name of a religion called Discordianism which sounds intriguing and of which I have never heard. I was chatting with someone and at some point he mentioned that he was Discordian and to my shame, I had to admit I had no idea what he was talking about...

Has anybody heard about it? Anyone checked it? Anyone attended some meeting? I would like to learn more about it.

This is a short text about Discordianism from Wikipedia:

Discordianism is a modern, chaos-centered religion founded circa 1958–1959 by Malaclypse the Younger with the publication of its principal text, the Principia Discordia.

It is widely regarded as a parody religion, and has been called "Zen for roundeyes", based on similarities with absurdist interpretations of the Rinzai school.

Discordianism recognizes chaos, discord, and dissent as valid and desirable qualities, in contrast with most religions, which idealize harmony and order.

Discordianism is largely composed of whimsical and absurd ideas, though many adherents claim there is a deeper meaning to their flippant attitude. Eris, the Greek mythological goddess of discord, has also become the matron deity of the religion Discordianism.