So, it's that time of year, and every once in a while I'll hear the Grinch's tune on the radio. One line that has always confused me is the line
You're a crooked jerky jockey, and you drive a crooked hoss!
Given the phrase "Jockey", I'm inclined to believe that "Hoss" is a purposeful mispronunciation of "Horse" in order to keep the flow of the song, but I've never heard of a horse being "Driven" only "Ridden". Is Hoss an archaic slang term for something else? A type of automobile maybe?