drone

drone on

To talk at length in a monotone. If you keep droning on like this, you're going to put your audience to sleep. A: "The professor's already been droning on about polynomials for an hour." B: "Oh, so that's why I lost interest an hour ago!"
See also: drone, on

drone out

To say something in a monotone. A noun or pronoun can be used between "drone" and "out." If you keep droning out information, you're going to put your audience to sleep.
See also: drone, out
Farlex Dictionary of Idioms.

drone on (about someone or something)

to lecture or narrate in a low-pitched, dull, and boring manner. The dull old professor droned on about Byron—or was it Keats? It was Shelley and, yes, he did drone on.
See also: drone, on

drone (something) out

to make a loud and low-pitched noise; to say something in a low-pitched and monotonous manner. The announcer droned the winning numbers out. She droned out the winning numbers.
See also: drone, out
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • drone on
  • drone out
  • rolling buzz
  • lull (one) to sleep
  • lull to sleep
  • pop into
  • hold at
  • explain
  • at great length
  • be torqued off
References in periodicals archive
'I watched about drone racing and FPV in YouTube and from there, I started building my own drone from scratch.
Circulo Verde takes drone racing to a higher level
"The market has become saturated in the leisure sector, and other countries are studying how to further use them in new sectors," said Kim Min-seok, the chief executive of AIS, a drone startup.
Launching drones for safety
The report introduces the bureaucratic infrastructure behind drone regulations.
Global Drone Regulation Report 2019
So it's no surprise that Amazon wants to move into the drone market, too.
Six drone delivery use cases and lessons for companies to use
He rejected reports that the drone had landed due to technical issues, adding that it had been handed over to the Frontier Corps.
Drone seized in Pakistan suspected to be Iranian
Iran in June shot down a US military surveillance drone in the Gulf with a surface-to-air missile.
US says Navy ship 'destroyed' Iranian drone in Gulf
Iran released video it said was taken from the Iranian drone with time stamps on the film showing it was operating hours after the Americans said they had shot down the drone at 10 a.m.
US Navy destroys Iran drone near ship
During the two-hour event, Piel demonstrated how to properly mount propellers and calibrate the drone. Unlike the propellers on airplanes, drones propellers are angled opposite so they can lift straight up and keep the equipment steady.
4-Hers: Join the Drone Photography Club this summer
"The drone regulations aim to ensure safety in the air and on land.
Now, feel free to take aerial videos, photos with drones in UAE
The Head of the UTM program at Terra Drone, Yosuke Kaneko, is quoted in the Terra Drone press release.
Taiwanese officials witness test of Japanese Terra Drone traffic system
The drone is part airplane and part helicopter, and was unveiled as Amazon hopes to move its popular prime delivery service from two days to one.  "It can do vertical takeoffs and landings 6 like a helicopter.
Amazon Unveils New Prime Air Delivery Drone
Wing's drones are capable of flying autonomously, but there are still pilots on the ground who can take control of the drone in case of an emergency.
Drones That Save Lives
Under the solution offered by Terra Drone and KDDI, a drone will generate a 3D model of the heavy industrial asset by flying around the structure, whilst simultaneously determining which components should be inspected.
Terra Drone and KDDI Launch Drone Infrastructure Inspection Services
From March 13, it is illegal to fly a drone above 400ft or within 5km of an airport, extending it from the current 1km restriction.
It is now illegal to fly a drone within 5km of Newcastle International Airport; The Government has extended the no fly zone after a drone brought Gatwick Airport to a standstill before Christmas