A famous person on twiiter that is baked all the time and says random shit.
"The trees have dead people on them.......and they black kittys are fighting the white kittys....OH MY GOD......racist kittys..." Quote from SmokingChrist
When some resigns or retires from a job, they are on "eternity leave". This can also refer to someone who has passed away, especially someone who worked somewhere for a long time, retired/resigned, then passed away later.
Oh I'm sorry, you didn't know that Kelly is on eternity leave? She resigned and moved to Hawaii!
With regrets I would like to inform you that my boss is officially on eternity leave. I will never see or hear them again. Ever.