Definition of "Buster"

Buster¹

/ˈbʌstɚ/

proper noun
1. A surname.

Buster²

/ˈbʌstɚ/

proper noun
1. A male given name.
2. A male nickname.
3. (colloquial, variously expressing familiarity, admiration, or hostility) Term of address for a man.
  Quotations
  Beginning with a curt “Listen, Buster,” she proceeded to sketch out with admirable clearness the salient points in the situation as she envisaged it [...] “I thought she was splendidly firm.” “Yes, sir.” “It's the red hair that does it, I imagine.” “Yes, sir.” “If anyone had told me that I should live to hear Aubrey Upjohn addressed as ‘Buster’ ...”
  1960, P[elham] G[renville] Wodehouse, chapter XIX, in Jeeves in the Offing, London: Herbert Jenkins