Derogatory term for a female that is miserable, bitchy, hates everyone, hasn't had sex in years etc. Such as a headteacher/principle at school for example.
I got caught skipping school last week and old vinegartits has given me another detention.
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.