Artificial intelligent assistant

bucko

bucko Naut. slang.
  (ˈbʌkəʊ)
  [f. buck n.1+ -o2.]
  a. A blustering, swaggering, or domineering fellow; sometimes used as a term of address. Also attrib. or as adj. = blustering, swaggering, bullying; esp. in phr. bucko mate. b. Swagger, bluster.

1883 J. F. T. Keane On Blue-Water xv. 190 After that, no sailor will deny that a ‘bucko mate’ is not sometimes useful. 1899 M. Robertson Where Angels Fear 107 Stand by here, mates. These buckoes'll kill some one yet. 1909 Times Lit. Suppl. 9 Sept. 325/2 Hudson was included among the victims because he was given to ‘bucko’ (to use a piece of sea slang). 1924 Ibid. 6 Nov. 712/3 Bucko skippers. 1926 Spectator 6 Feb. 229/2 A youngster who went to sea as apprentice and finished bucko mate of a Yankee packet. 1927 Blackw. Mag. Jan. 5/1 A great big bucko of a man. 1939 T. S. Eliot Old Possum's Practical Cats 16 His bucko mate, Grumbuskin, long since had disappeared. 1969 Courier-Mail (Brisbane) 18 Aug. 5/2 The old buckos in the peaked caps..never thought they would live to see the day when Irishmen applauded the arrival of British troops.

Oxford English Dictionary

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