The material below is Open Game Content from a 3PP Source
Barbarians are known for their ability to consume potent drink, but drunken brutes turn drinking into a combat tactic, using the potent liquor to fuel their rage and grant them additional powers. A drunken brute has the following class feature.
Raging Drunk (Ex): While raging, the drunken brute can drink a potion, or a tankard of ale or similar quantity of alcohol, as a move action that does not provoke attacks of opportunity. A potion has its normal effect, while an alcoholic drink allows the barbarian to maintain her rage that round without expending a round of rage for the day (instead of the alcohol's normal effects). For each alcoholic drink consumed while raging, the barbarian is nauseated for 1 round when her rage expires, in addition to the normal fatigue that follows a rage. Tireless rage does not negate this nauseated condition but the internal fortitude rage power does. This ability replaces fast movement.
Rage Powers: The following rage powers complement the drunken brute archetype: boasting taunt, good for what ails you, internal fortitude, liquid courage, moment of clarity, roaring drunk, and staggering drunk.