rotgut

Raw, inferior liquor.

Bad or adulterated liquor, injurious to the stomach and bowels; in the United States, specifically, whisky adulterated with deleterious substances to cheapen it while increasing its apparent strength.

Injurious and corrosive: said of bad liquor.

Bad small beer.

Any bad spirituous liquor, especially when adulterated so as to be very deleterious.

raw or poor quality alcoholic liquor

any alcoholic beverage of inferior quality