Gwimbly is a minor character in the Adult Swim show Smiling Friends. A low polygon frog like creature with a prolapsed anus featured in various games of the 90s, during the 3D platformer craze. Memes featuring Gwimbly in various video games where he does not make an appearance have become popular recently.
James: Did you hear they added Gwimbly to smash brothers?
Phil: Wait for real? Does he do his iconic Gwimbly dance?
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.