Cute sounding abbreviation for "I love you". Can be used as a full sentence to express your love for your significant other. Is mostly used in written conversations. A typical response can be "iluvutu" for a simple sounding "too".
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.