EXAMPLES FROM THE WEB FOR BUZZER
Jim heard a buzzer and then the voice of a clerk, "Yes, sir."
The girl pulled the sheets from the machine and sorted them while I was stabbing the buzzer.
And I'll be put on the buzzer if he didn't throw the bluff that he'd never had the thing on his head.
"Well, we might as well have him in," says Old Hickory, pushin' the buzzer.
A buzzer was ringing in the turret, and I plunged back for it.
"I've got a buzzer under one of the treads of the stairs," said the colonel.
He pressed a buzzer and the secretary came hurrying from his stateroom.
In about twenty minutes the buzzer on my pix-box sounded, and I depressed the key.
Well, then, why should they hand you anything but the buzzer?
The principal then pressed the buzzer that summoned her secretary.
c.1600, "buzzing insect," agent noun from buzz (v.). In reference to mechanical devices that buzz, from 1870 (steam-powered at first; electric mechanisms so called from 1884).