squawker

== English == === Etymology === From squawk + -er. === Pronunciation === === Noun === squawker (plural squawkers) Something that squawks. A person who complains or protests noisily. (slang) An informant; a stool pigeon. A loudspeaker used for frequencies intermediate between those of a woofer and a tweeter. (slang) The radio used in police vehicles to keep in contact with headquarters.