Sentence:  So he changed his "brusque" manner, and inquired, in a tone which was intended to be extremely conciliatory : / ‘ What′s your name, <WSD>bub</WSD> ? ' / ‘ The last one, Sir ? ' asked <WSD>bub</WSD>, looking up. 
Meaning of the word marked with <WSD> tags:  A term of familiar address; bubba; bubby.