Definition of bad boy noun from the Oxford Advanced Learner's Dictionary

 

bad boy

 noun
noun
BrE BrE//ˈbæd bɔɪ//
 
; NAmE NAmE//ˈbæd bɔɪ//
 
(informal)
 
jump to other results
a man who behaves badly, especially in a particular area of activity He used to be known as the bad boy of Hollywood.