when you eat a lot of carbohydrates before going out to a party to get drunk. so as to have the carbs absorb some of the toxins and reduce the chance of puking.
Guy 1: hey man, you ready to go to bryans party and get drunk as shit? he's got three kegs.
Guy 2: oh you know i am! just lemme carb up really quick, i don't want to look like you last time, and puke all over lindsey.