Chad (paper) device which will not punch a complete circle in the tape but, instead, will only cut approximately three-quarters of the circumference of a circle ... thereby leaving a movable, or hinged, lid of paper in the tape." In the "New Hacker's Dictionary", two unattributed and likely humorous derivations for "chad" are offered, a back-formation from a personal name "Chadless" and an acronym for "Card Hole Aggregate Debris". Other etymologies claim derivation from the Scottish name for river gravel, "chad", or the British slang for louse, "chat". When a chad is not fully detached, it is described by various terms corresponding
Hole carding Below is a sample blackjack, partial hole card hit/stand table for two decks. The columns are based on the dealer upcard and the rows based on the player hand. Partial hole card tables contain ten columns as you do not know the dealer total hand for certain. A different set of tables must be used depending on the information about the hole card. In this table, the hole card is a six or seven. Green denotes a hit. You will note that this table bears little resemblance to a standard blackjack strategy. Hole carding generally refers to knowing the dealer’s