run up the flagpole

run (something) up the flagpole

To test out an idea in order to gauge interest or gain feedback. Run your idea up the flagpole before you pitch it to the boss, so that you don't make a fool of yourself.
See also: flagpole, run, up
Farlex Dictionary of Idioms.

run (something) up the flagpole

Slang
To test (a plan, suggestion, draft, or idea) and then measure the response to it.
See also: flagpole, run, up
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • flagpole
  • run (something) up the flagpole
  • run something up the flagpole
  • bounce an idea off (of) (one)
  • bounce an idea off someone
  • that's an idea
  • that's an idea!
  • put (something) into (one's) head
  • put in head
  • put something into someone's head