as a situation (usually a particularly ridiculous one)
an adjective, either to describe a friend that’s silly or unordinary or a significant other that’s very dear to one’s heart but also shares that silliness
this could be used in any case, depending on the context.
situation:
A: What are you guys arguing about?
S: She won’t remember a song I added to a playlist!
A: Imagine having a shimwaggle about this!
friend:
A: You’re such a silly shimwaggle!
J: Awh, thanks.
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.
The hypothetical man (often a sinistercharacter who decided not to go to boot camp) that is doing your girlfriend/wife while you are on deployment overseas.
Ain't no use in goin home,
Jody's got your girl and gone.
Ain't no use in goin back,
Jody's got your Cadillac,
Ain't no use in feeling blue,
Jody's took your checkbook too.