'Buster' definitions:

Definition of 'buster'

(from WordNet)
noun
An informal form of address for a man; "Say, fellow, what are you doing?"; "Hey buster, what's up?" [syn: fellow, dude, buster]
noun
A robust child
noun
A person who breaks horses [syn: buster, bronco buster, broncobuster]
noun
A person (or thing) that breaks up or overpowers something; "dam buster"; "sanction buster"; "crime buster"
noun
A person born in the generation following the baby boom when the birth rate fell dramatically [syn: baby buster, buster]

Definition of 'Buster'

From: GCIDE
  • Buster \Bus"ter\ (b[u^]s"t[~e]r), n. Something huge; a roistering blade; also, a spree. [Slang, U.S.] --Bartlett. [1913 Webster]