One may meet a fair number of people who like to aim that term at any old sentence that happens to be long and twisty and made up of any number of innumerable bits divided by semicolons, dashes, parentheses, and whatever else the writer may have had on hand. Nay. A long sentence is a long sentence, it’s only a run-on sentence when it’s not punctuated in the standard fashion. Like that one just now.
