The subject of this article or section is part of Hallow's End, a seasonal event that lasts two weeks. Once the event has run its course, this will no longer be available until next year, but there are no guarantees.
Apple Bobs can be found in inns all around Azeroth and Outland during the Hallow's End event. Players can loot them by right-clicking them to receive up to 5 Bobbing Apples.
While there is no limit on the number of times a player may loot an Apple Bob, you can only hold 5 Bobbing Apples at a time.