In a polyamourous relationship where at least two women are involved each woman is a sisterwife to the other. Sisterwives may or may not have a sexual relationship with each other.
Close female friend (or Dave) who believes that she holds a position of importance in the life of the Queen, even though she really just sleeps on various surfaces in Party Central. A sisterwife doesn't pay rent, but is domiciled in the home of the Queen Sisterwife and has no problem leaving mass amounts of garbage and refuse for the Queen to clean up. Sisterwives often take pleasure in naked spooning with the Queen Sisterwife and her random conquests, and also have no shame in belittling young Sicilian bedfellows. Whilst a sisterwife has no respect for the Queen's minions, she will often find solace in handholding with the aforementioned young men who find themselves in the lair of the Queen.
Louis, you are taking a nap and I've called you 50 times, with no response. A sisterwife would never do that. Stop having sex with tranny prostitutes.
A term used to describe a woman you're attracted to as "wife material" typically as a way to express wanting to be her brother, and not necessarily requiring her to be your biological sister (hopefully not ever).
I wish Ashley Graves from The Coffin Of Andy And Leyley was my sisterwife
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.