These are things that you don't know that you don't know, as opposed to things that you know you don't know. Coined by Donlad Rumsfeld, former US Secretary of Defense.
Boss: Is there anything that will cause this system implementation to fail?
You: That's an unknown unknown!
an unknown artist is an unheard of yet a highly underrated and slept on public figure or artist that the world lacks the knowledge to learn about or appreciate
Ergo, junior Grimes = unknown artist
Or artist unknown, either way the outcome is the same
another term for a station wagon, mini-van, or any other kind of vehicle that is targeted at the "family" demographic(also M.A.V.)
"Tactical advantages aside, the M.A.V. is top of the line for the holy warrior troop transport manufactured by the Church of Latter Day Saints Military Industrial Complex. Also great for family trips...to heathen lands."
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.