definition of
[buster]

[1] #1 buster n. [fellow, dude] an informal form of address for a man; "Say, fellow, what are you doing?"; "Hey buster, what's up?". wn

[2] #2 buster n. a robust child. wn

[3] #3 buster n. [bronco buster, broncobuster] a person who breaks horses. wn

[4] #4 buster n. a person (or thing) that breaks up or overpowers something; "dam buster"; "sanction buster"; "crime buster". wn

[5] #5 buster n. [baby buster] a person born in the generation following the baby boom when the birth rate fell dramatically. wn