couch beer

The single beer everyone in the room drinks because everyone wants to drink a beer but noone wants a whole one, or it is in fact the last one. This beer is typically drank over the course of a couple of hours as it was rendered warm near instantaneously.

" I don't want a whole beer so we will make this the couch beer and pass it around."...or... " if that is the last beer make it the couch beer so that we can all have some!"