Coke Deck
A coke deck is any flat, hard, non-porous surface used for the insufflation of narcotics. In practice, this is usually a mirror, but it can be many things; the top of a refridgerator, a varnished table, a marble kitchen surface, an iPad, etc.
"Yo homes, I just upgraded to the iPad 3, now my old iPad 2 is my new coke deck!"