cone off(redirected from coning it off)
To use traffic cones to indicate that a section of a road or some area is closed. A noun or pronoun can be used between "cone" and "off." Police coned off the entire parking lot while the crime scene investigation was under way. We'll need to cone the road off until the repair work is done.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.