beer helmet

After finishing a case of beer, you proceed to open one end of the case and place it on your head. Thus you can see out of the handle and you are wearing a beer helmet.

Does not protect head from injury

A helmet, usually football, with a holster on each side where cold beverages, usually beer, are stored. The wearer can then drink the beverages using straws attached to the helmet, which are placed inside of the open beverage, leaving the wearers' hands free for other activies, such as cheering at a sports event.