Wiktionary
quonk
n. 1 Unwanted noise picked up by a microphone in a broadcasting studio. 2 Audience chatter which disturbs the performer. vb. 1 (context intransitive English) To produce unwanted noise. 2 (context intransitive English) To honk.
Usage examples of "quonk".
He had a stage voice, too, and knew how far it could be heard, so when he was being confidential he mumbled on purpose and threw in a lot of Eh and Quonk, which seemed to convey meaning to people who knew him.