toil up (something)
To climb something with great, prolonged, and continuous effort. We toiled up the mountain, hoping to reach the peak before noon. The crew will have to park down below and toil up the hill with all of their equipment.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
toil up something
to work hard to climb something steep. The hikers toiled up the slope slowly. As the bus toiled up the hill, we worried that the engine might be overheating.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.