Stingo is a slang term used to describe cheap or inferior alcoholic beverages. Some synonyms for stingo include rotgut, hooch, moonshine, swill, slop, and gut-rot. These words are often used to describe low-quality distilled spirits that are not intended for human consumption. Some other synonyms for stingo include firewater, white lightning, and the blue flame. These terms are often used in the context of bootlegging or home distilling, where illegal or unsafe methods are used to produce low-quality alcohol. In general, the term stingo refers to something that is unpleasant, harsh, or of poor quality, and its synonyms reflect that negative connotation.