Noddy

A simpleton or fool. Also a kind of low cart, with a seat before it for the driver, used in and about Dublin, in the manner of a hackney coach: the fare is just half that of a coach, for the same distance; so that for sixpence one may have a set down, as it is called, of a mile and half, and frequently a tumble down into the bargain: it is called a noddy from the nutation of its head. Knave noddy; the old-fashioned name for the knave of trumps.