shitface beer
any cheap alcoholic beverage that is cheap, found at your local 7-11, and is produced and consumed soley to get you shitfaced drunk ex colt 45, hurricane, golden thunder, olde english 800, King Cobra, etc . it is usually purchased by gangstas, truckdrivers, kids who wanna get drunk fo cheap, and straight up drunks who are too poor to buy anything else. It is also usually drank from a paper bag to avoid detection.
That bum just bought some shitface beer so he can get shitfaced and forget the predicament that he is in.