Cross between a squeal (of glee) and a tingle (due to encountered hotness) and possibly involving connotations of tinkle ('cause you're so excited that you sorta pee yourself a bit). Much like "squeal" and "tingle," skwinkle can be used as either a verb or a noun.
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.