catcall /ˈkætkɔl/noun 4verb 1forms 3 noun4 •A shout or whistle expressing dislike, especially from a crowd or audience; a jeer, a boo.There, amid the curses and catcalls of sweaty beer drinkers, the tour's headliners are set to engage in a hallowed feminist ritual: — 1998 •(historical) A whistle blown by a theatre-goer to express disapproval.At what period was the custom of blowing catcalls at the theatre discontinued? — 1823 •A shout, whistle, or comment of a harassingly sexual nature, usually made toward a passing woman, causing distress and trauma. •In the Eiffel programming language, a run-time error caused by use of the wrong data type. verb1 •To make such an exclamation. formscatcalled · catcalling · catcalls