sour milk sour mash whiskey • sour orange · · · Info · Definitions · Characters · · sour milk · · Text Common · · Latin · · Scripts 9 · · Length 2 · · Syllables Definitions · · · (noun) milk that has turned sour. Synonyms: sour milk. · · Noun Definition 1 Characters · · space U+0020 i latin small letter i U+0069 k latin small letter k U+006B l latin small letter l U+006C m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075