When the driver, preferably girl, gives a blowjob to the passenger. Often confused with road dome. Except this gives off the appearance no one driving the car, like the headless horseman.
I coudln't believe it when that Jewish guy whipped out his headless horseman, I thought those guys had some kind of foreskin trimming part or something.
An alcoholic mixed drink invented in San Francisco which combines one part straight Jameson and one part straight Jack Daniels. "Headless" because you have to be stupid to order it and "horseman" because you need to be able to have the tolerance of a horse to drink it.
