climb on

climb on(to) (someone or something)

To mount someone or something. We can reach the cookies on that shelf if you climb on my back. I was nervous, but I climbed onto the horse nonetheless.
See also: climb
Farlex Dictionary of Idioms.

climb on(to) something

 and climb on
to ascend to or mount something. I climbed onto the side of the truck. Tommy climbed on the truck.
See also: climb, on
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • climb on(to) (someone or something)
  • go near
  • go near (someone or something)
  • on the shelf
  • get to (someone or something)
  • get to someone
  • get (one's) hands off (of) (something or someone)
  • break (something) on (something)
  • break on
  • try out on