Hand Mucker (poker)
A thief who palms cards, which he holds out for later introduction
into the game.
This usage comes from a pan (panguingue) dealer, who, in the
course of dealing the game,
constantly shuffles cards that have been played (taking these
cards from the discard pile, or the muck) and reinserts cards
of similar rank and suit into various separated places of the
remainder of the deck.
