A Orgasm type feeling that results when climbing into a shower after heavy manual labor or just exhaustion. Showergasms can be as pleasurable as an orgasm. Some things that happen when you recieve one are: legs going limp, grumting or panting, and shiviers up your spine
after i got back from 20 hours of lifting lead, i climbed into the shower and collapsed in pleasure because of my showergasm.
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.