Catcall

(n.) A sound like the cry of a cat, such as is made in playhouses to express dissatisfaction with a play; also, a small shrill instrument for making such a noise.

Thesaurus Entries

Bronx, Bronx cheer, Klaxon, bird, boiler factory, boiler room, boo, booing, bull-roarer, cherry bomb, clack, clacker, clapper, cracker, cricket, firecracker, give the bird, give the raspberry, hiss, hissing, hoot, horn, noisemaker, raspberry, rattle, rattlebox, razz, siren, snapper, steam whistle, the bird, ticktack, whistle, whistle at, whizgig, whizzer