Pronunciation: (kat'kôl"), [key]
1. a shrill, whistlelike sound or loud raucous shout made to express disapproval at a theater, meeting, etc.
2. an instrument for producing such a sound.
to sound catcalls.
to express disapproval of by catcalls.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.