Enjoy the beer that you deserve.
This term refers to a glass in the shape of a boot.
This type of glass can hold 2 to 4 pints (1 to 2 liters).
It can hold a large quantity of beer, which can come in handy in certain situations.
Steifel is the German word for "boot". This drinking device is meant for communal drinking. The last one to empty the glass buys the next round, possibly after spilling the last slug of beer.