Beer Pony
A drinking game where a party attendee messes up (defined by the person who calls "beer pony" and the party at large) and now he or she must finish their drink and run a lap (wherever you are: if you're in a house then the house, if you're in a field, then the field, etc).
Oh man, he dropped his freshly opened beer. Looks like he's going to have to do a beer pony!