Keg End

Keg End (33rd Day of Vorehexen) is the conclusion of the Dwarfen calendar. It is a time in which Dwarf families must empty the last of their kegs in anticipation of the coming year. Copious amounts of beer are consumed during this celebration, and songs are sung that describe the previous year. Humans of the Empire have also taken up this tradition, though not nearly with the same fervour as their Dwarf brethren. Laws dealing with public drunkenness are either ignored during this time in liberal areas or tightened to excruciating levels in places that are more conservative. Excess beer is often given to those in need, although spilling even a drop during this festival ensures bad luck for the coming year.

Source
pg. 146
 * Warhammer Fantasy RPG 2nd ED -- Tome of Salvation