What is Beelzebub worship?

A religion that is very closely related to satanism and the style of worship is the same. Except in Beelzebub worship they have huge feast in hornor of and to worship Beelzebub that goes on all night. When each worshiper is full they go to a vomitorium to get rid of all that food and then go back for more which they often do all night and go back for more food.They also have sex at the feast.