The Flying Scepter is a tavern in Dreamland frequented by Bean. It is named after the fact that it is in such a location that whenever King Zög gets angry and throws a scepter it hits this tavern. 

When a scepter flies into the tavern whilst Bean is having a drink there with her buddies she is reminded of her angry father, with whom she doesn't get along. This results in her putting the drinks of everyone present on his tab. She likely does this without his permission, but if it means she doesn't have to pay, all the better.