Here is a couple (at least heard around my parts)
Doughnut (aka: Skunk) - Beating someone by something to 0
Saver - An agreement between to players that are playing a match (usually right before the money). The winner will pay the loser a set amount of money to the loser...(usually the value of the entry fee, or a little more)
Air Barrell - The value of the bet is considered a Barrell...The player that is "firing the Air Barrell" does not have the money in his pocket to cover the bet.
Rainbow - All the balls in a 9-ball rack... (Usually used in matching up with a very weak player... Example (I will give you the Rainbow)
Orange Crush - Giving the 5-ball or the 5-out
Lock - (see Nuts) - A Bet you can't lose
Lock Artist - One who only bets on "locks"
Mechanic - A person that is an expert at giving bad and/or stacked (loaded) racks
Tit - Point of pocket
The following are unofficial but probably used enough to qualify
HH - Hal Houle
3-Line - An Aiming system taught by Hal Houle
I am sure I will think of others....