beer jail

The name given to a location you are banished to when you attend a music festival and purchase a beer from a vendor that is not officially affiliated with the music festival.

Sucks for Troy, he’s over there in beer jail

Two beer jail

The alcohol limit imposed after getting too drunk around your friends.

Friend 1: Yo want to take a shot?
Friend 2: Can’t, I am in two beer jail after last weekend.