Swill
Swill, like rot-gut, was typically the term used to described an inexpensive liquor or beer, but unlike rot-gut, may refer to any food-stuff or non-alcoholic beverage of unquestionably poor quality. 

When Data spoke with Romulan defector Setal in 2366, while the two stood together in Ten Forward aboard the , Setal commented on the synthehol he was drinking, describing it as "synthetic swill", instead wishing that the  food terminals there could producing Romulan ale instead. ()

Following the Cardassian withdraw from Terok Nor/Deep Space 9 in 2369, Quark found himself stuck with an unwanted order of 5,000 wrappages of yamok sauce, adding "they're the only ones who could stomach that swill." ()

Weyoun 5 considered Cardassian kanar to be swill. ()

External link 
 
Alcoholic beverages
Slang