rotgut
noun
- concentrated alcohol from a still or other dubious source
Wiktionary
noun
Etymology: From rot + gut.
- Raw or poor-quality alcoholic liquor.
“Near-synonym: red-eye”
“Then the harpooner carried away a pink flask to be filled in some blind pig, for there were no licensed saloons in that locality. We drank the cheap rotgut out of tumblers.”