PB stands for Productive Burp and sliming is not short for anything, it's just sliming. When something gets stuck while you're eating, you start sliming. It's a mucousy "slime" that's the result of an influx of the enzyme used to break down your food because it's trying to get rid of it. Sometimes the slime helps get it down, but sometimes it comes back up, which brings us to the PB. If the sliming doesn't get the food down, then it will come back up, which is what people are referring to as a productive burp. It's not quite like vomiting, but it is a regurgitation of the food, and the slime will come up with the food. <when sliming happens, I wouldn't really say that you can feel it happening, but you do feel a thick mucous in the back of your throat> Hopefully whatever was stuck will become dislodged and then you will fee MUCH better. When you are stuck it is a very uncomfortable feeling and it's like someone is sitting on you/you're having a heart attack. I didn't experience being stuck stuck until my third fill (6 cc's in a 10 cc band). I just have to make sure I chew my meat up before swallowing. The old habit of inhaling food or starting off eating fast because of being super hungry CAN NOT happen anymore. I have had to consciously think about slowing down my eating and chewing more.