A male human who is referred to as being footless because he has no balls or penis which are essential parts of any standard man for doing stuff that takes any balls.
Look at that footlessfish, he can't do anything that is at all hard or challenging because he has no balls, shame.
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.