eternity leave 

A mother, who once has realized that staying home is infinitely better than going back to work goes on "eternity leave".

Alison never returned to work after the first baby she is on eternity leave.

eternity leave by AlisonG May 15, 2007

Eternity leave 

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.

Eternity leave by LingDanc803 February 7, 2023