The term 'Vulgar One' can be broken down into three crossword solutions: LOUT (4 letters), SLEAZE (6 letters), and GUTTERSNIPE (11 letters). LOUT is a noun meaning an ill-mannered, aggressive, or boorish person. SLEAZE is a noun meaning someone who behaves unpleasantly or unethically. GUTTERSNIPE is a noun meaning a person of low social standing or a person who is considered to be of no value. All three words are used to describe someone who is rude, unethical, and of low social standing.