I like the idea of Chemist simply because I want to see them breaking bottles over people's heads.
I think that may be the Hillbilly Berserker class you're thinking of lol.
Maybe a "Drunken" class would be kind of cool. Abilities would be turned on or upgraded depending on the type or volume of drink ingested. Or is that how chemist works already?
I had a character that was this - a "shot mage." She used shots of various alcohols to change her elemental affinity. The more she used, the less accurate her attacks were, but the more powerful.