The Wheel = This refers to a five high straight (A2345)
Scoop = Scooping is winning both the high and low hand in Omaha H/L
Double Suited = Having two sets of suited cards in your hand ie, As- 3s - 7h-9h
Quartered = When two or more people have to split one of the pots in Omaha Hi/Lo, usually the low pot.
Chopped pot = Also known as a split pot, is a Omaha High Low term that happens quite often. When the pot is split between the high and and low hand it is a chopped or split pot.
Nut Draw = When you are drawing for the best possible hand it is call;ed the nut draw. If you have AK45 and the flop is 10Q34 with no possible flush so far your nut draw is an ace high straight if you get the jack.