Similar to the elusive Purple Shirt of Sex, the Red Pants of Sex refer to the glorious pair of y-fronts worn by John Watson. The Red Pants originally were the devices of the brilliant Reapersun on Tumblr. The Red Pants of Sex even have their own day of the week (Monday) and are loved by many. In some parts of America and the UK, they are worshipped by many pubescent teens.
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.