A liver dump is when glycogen stored in the liver is turned into glucose (glycogenolysis) and it is released into the blood stream. The result is that blood glucose goes up, in spite of no food having been consumed. It is a natural process, and it usually happens when it has been a long time since your last meal. This why a lot of people get liver dumps in the morning. You can reduce the chances of it happening by eating something before going to bed.