Definitions for "Exposed Card"
(1) a card whose face becomes visible at an incorrect time under the laws;(2) a card that must be played in accordance with a penalty.
A card dealt face up that was supposed to be dealt face down.
A game error where a card is accidentally turned face up when it should have remained face down. These situations by definition can only happen in land based games, and when they occur it is up the dealer to make a ruling.