Kings from Hell
Kings from Hell is a variation on the popular drinking game Kings. The only difference is that you play with a small, vacation/travel sized pack of cards, that way it's really hard to keep the cards connected. Some versions of Kings from Hell mandate that not only if you break the whole circle you have to drink but also if you break a chain of 4 or more cards you have to drink (this number can vary or just not be used).
We played Kings from Hell last night when we were pregaming and by the time we got to the party it was as if we'd already been partying and were postgaming!