WordWeb Online

1. An informal form of address for a man
   "Hey buster, what's up?";
   - fellow, dude [informal], cock [Brit, informal], bruv [UK, informal], bo [US, informal], matey [Brit, informal], bro [US, informal]
    
2. A robust child
    
3. A person who breaks horses
   - bronco buster [US, informal], broncobuster [US, informal]
    
4. A person (or thing) that breaks up or overpowers something
   "dam buster"; "sanction buster"; "crime buster"
    
5. [N. Amer, informal] A person born in the generation following the baby boom when the birth rate fell dramatically
   - baby buster [N. Amer, informal]

Derived forms: busters

Type of: adult male, bozo [N. Amer, informal], cat [N. Amer, informal], chappie [Brit, informal], child, equestrian, fry [archaic], geezer [Brit, informal], guy [informal], hombre [Brit, N. Amer, informal], horseback rider, horseman, individual, kid [informal], kiddie [informal], kiddy [informal], man, minor, mortal, nestling [informal], nipper [informal], person, shaver [informal], small fry [informal], sod [informal], somebody, someone, soul, tiddler [Brit, informal], tike [informal], tyke [informal], wean [UK, Ireland, dialect], youngster

Encyclopedia: Buster, John