Poker term:
1) Traditionally refers to drawing Jack-Deuce as your starting hand, ie. "Jack-Shit"; a bad hand. Although may
sometimes be extended to refer to a
combination of a Jack with any low value card 2-7, typically.
2) Jack-Shit Poker - A variation on the familiar Seven-Deuce Hold'em. A pre-arranged
additional reward is owed by one's opponents if he wins a hand with Jack-Deuce as his hole cards.