What constitutes one to be an alcoholic?

If you're asking what makes one an alcoholic, you are probably an alcoholic. Being an alcoholic depends on many things. Your intake, how often you drink, etc. If you need to have a drink to enjoy yourself when socializing, you're an alcoholic. If you have a beer or two (or 5 or 6) when you get home from work, you're probably an alcoholic. Considering you said you "slammed" a case of Sam Adams and a 1.75 liter of Vodka on Superbowl day... I can see you being an alcoholic.