buster

1 ENTRIES FOUND:
buster /ˈbʌstɚ/ noun
plural busters
buster
/ˈbʌstɚ/
noun
plural busters
Britannica Dictionary definition of BUSTER
1 
[count]
a  : a person or thing that stops or prevents something — usually used in combination
b  : a person or thing that breaks something apart — usually used in combination
2 
US, informal + somewhat old-fashioned — used to address a man who is behaving in a way you do not like