Definitions by Oxenford Dicktionaries

Bren 

Estonian for a person with an idiotic behaviour.

Liam: Do you want me to blow your globe brother?

Alex: Stop being such a bren Liam!

Bren by Oxenford Dicktionaries May 25, 2019

Luciferian 

A Luciferian is a person who believes in Lucifer and Luciferianism.

I am a Luciferian and I'm so proud about it.

Luciferian by Oxenford Dicktionaries December 27, 2011

Luciferianism

Luciferianism is a belief system that venerates the essential characteristics that are affixed to Lucifer. Luciferianism is identified as an auxiliary of Satanism, due to the identification of Lucifer with Satan.

Now there are people who call themselves as Luciferians who're practicing Luciferianism as a religion.

Luciferianism by Oxenford Dicktionaries December 27, 2011

FLOS 

For the Love of Satan

Eveything in this world is happening FLOS

FLOS by Oxenford Dicktionaries July 27, 2011