Poker terminology - Terms with an "J"

Jack and Back - Jackpot poker that reverts to low-ball if no one opens (Jack and Reverse, Jacks Back, Jackson).
 
Jack Up - To raise.
 
Jackpots - See Jacks to Open.
 
Jacks to Open - Draw poker in which jacks or better are required to open (Jackpots).
 
Jam - A hand in which several players are raising each other.
 
Jinx - A curse of bad luck.
 
Jog - An unevenly stacked deck used by a cheater to mark where his partner should cut the deck (Step).
 
John, Jake, J-Boy - A jack.
 
Joker - The 53rd card added to a deck (See Bug).
 
Joker Poker - Poker played with the joker as wild.
 
Jonah - An unlucky player