buster Meaning, Definition & Usage

1. noun an informal form of address for a man
   dude; fellow.
   
   • Say, fellow, what are you doing?
   • Hey buster, what's up?
2. noun a robust child
   
3. noun a person who breaks horses
   broncobuster; bronco buster.
   
4. noun a person (or thing) that breaks up or overpowers something
   
   • dam buster
   • sanction buster
   • crime buster
5. noun a person born in the generation following the baby boom when the birth rate fell dramatically
   baby buster.
   

WordNet