Hi, aw in a traditional sense is an interjection. used to express mild sympathy, pleading, disbelief, or disappointment. However, in this context aw is an abbreviation for the term “auto win.” Auto win means when a seller lists a price that will be considered an immediate termination of the sale and reserved for the player who bids that said price. There are some instances where sellers will only have the starting bid, or sb for short, as the auto win price. If you need anymore help please feel free to reach out to Cynn Facts.