Definitions for flagpoleˈflægˌpoʊl
Random House Webster's College Dictionary
Ref: Also called flagstaff. 1
Idioms for flagpole:
run (something) up the flagpole,to announce as a test to gauge reactions.
Origin of flagpole:
range pole, ranging pole, flagpole(noun)
surveying instrument consisting of a straight rod painted in bands of alternate red and white each one foot wide; used for sightings by surveyors
a tall staff or pole on which a flag is raised
Kernerman English Learner's Dictionary
a long pole to hang a flag from
A tall pole up which one or more flags may be raised and flown.