Basically, you use the GE and a pile of cash to make yourself a profit by "buying & selling" items. You buy an item for a low price, and then sell for a higher price in order to make a profit. That is where the term "flipping" comes in, as you are essentially flipping an item everytime you buy and sell. Have you ever heard of the real life term "flipping houses"? Where people buy houses for cheap, fix them up and then sell them for a massive profit? Its the exact same concept.