A Negaunee briefcase is a term used to describe a 24 pack case of cheap beer such as Labatt Blue. In the rough-and-tumble mining towns of Michigan's Upper Peninsula, people overconsume cheap beer on a daily basis. A Negaunee briefcase is perfect for your next business meeting in Upper Michigan. First coined by geographers at NMU in 2008.
The three of us Yoopers pooled our money and bought a Negaunee briefcase to drink while sitting on the shore of Lake Superior. At 24 cans, we each have 8 cans to consume in the next couple of hours. If we wanted to drink more, we would've bought the 30-pack of Labatt Blue, occasionally referred to as an Ishpeming briefcase.