To hitch up

To fasten up.
To pull or raise with a jerk; as, a sailor hitches up his trousers.
To attach, as a horse, to a vehicle; as, hitch up the gray mare.

See also: Hitch, Hitch, Hitch

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
To hitch up, jack the trailer's tongue to the appropriate height (if you have a gooseneck hitch, be sure to lower the tailgate on the truck) and slowly back the truck to the trailer (check those mirrors).