Trailer Jockey 

Someone who parks trailers. Usually at trucking companies and freight companies. They use a special tractor, designed to quickly move trailers in and out of docks more efficiently than a regular truck can. Also known as Hostlers, Yard Goats/Dogs/Trucks, Spotters, and curse words in many languages.

Ask the trailer jockey to find your reefer, driver.

Trailer Jockey by Faultliner June 13, 2019