fdok: first day of kindergarten.
When somebody is completely lost, and just not getting it, one asks them if it is their fdok.
Stacey: Man, I just don't understand why the TV isn't working!
Allie: Did you plug it in?
"Face Down On Keys", usually when someone crashes out during a late night mmorpg run. Usually results in gobbldygook appearing on the screen from cheeks hitting multiple keys.
Player 1: agjlksjaeglkjsgldkjs.
Player 2: Ah, fdok.