"Blow the Horn" Kid is an unnamed boy.
Homer got angry and wanted to teach him a lesson, but Bart then explained him that the boy only wanted Homer to blow the horn. Homer pulled a cord and released a trailer. In "Lisa the Vegetarian" he was seen in Ms. Hoover's class, which means he's a second grader.
His hair color has changed a number of times. His hair usually dark brown or black, but in Maximum Homerdrive his hair was orange.