mount on

mount (something) on (something else)

To set or affix something at a higher position on something else. I was going to mount the new TV on the wall, but I actually prefer it on the table where it is now. The soldier mounted the machine gun on the rampart in preparation of the invading forces.
See also: mount, on
Farlex Dictionary of Idioms.

mount something on something

to place or attach something onto something. Mount the butterflies on plain white paper. Sue mounted her favorite stamps on a display board.
See also: mount, on
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • a slew of (something)
  • a/the feel of (something)
  • (I) wouldn't (do something) if I were you
  • a straw will show which way the wind blows
  • a crack at (someone or something)
  • all right
  • (you) wanna make something of it?
  • all for the best
  • (have) got something going (with someone)
  • a thing of the past