The phrase "beer mug" refers to a type of container that is specifically designed to hold beer. It is a cylindrical-shaped mug usually made of glass or ceramic, often having a handle for holding. Full definition
Find mugs for the best dad and mom in the world as well as funny beer mugs with bells! (orientaltrading.com)
When entering the monastery grounds from the giant parking lot, the gate made of wood and Masskrüge (1 liter glass beer mugs) is a dead giveaway that this place is about brewskys, too. (fieryfoodscentral.com)
There, you could trade a number of beer mugs for items that regenerated at the start of every mission. (heypoorplayer.com)