A non-driver who gives directions to the driver but instead of going the most direct route sends the driver (and those in the car) down the more 'scenic' path to the detriment of expediency.
Samantha, our navigatour, showed us the more picturesque attributes of the city. However, after 45 minutes of not yet arriving at our destination Henry, the driver, took matters into his own hands and just got on the highway.
by justcallmebridget July 1, 2011