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

 

ballyhoo

 noun
noun
BrE BrE//ˌbæliˈhuː//
 
; NAmE NAmE//ˈbælihuː//
 
[uncountable](informal, disapproving)
 
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unnecessary noise and excitement Word Origin late 19th cent.: American coinage of unknown origin.
See the Oxford Advanced American Dictionary entry: ballyhoo