Definition of catcall noun from the Oxford Advanced Learner's Dictionary

 

catcall

 noun
noun
BrE BrE//ˈkætkɔːl//
 
; NAmE NAmE//ˈkætkɔːl//
 
[usually plural]
 
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a noise or shout expressing anger at or disapproval of somebody who is speaking or performing in public A chorus of catcalls and boos erupted in the middle of the ballet. Word Origin mid 17th cent.: from cat + call, originally denoting a kind of whistle or squeaking instrument used to express disapproval at a theatre.
See the Oxford Advanced American Dictionary entry: catcall