Sentence:  Such portentous appetites had Queequeg and Tashtego, that to fill out the vacancies made by the previous repast, often the pale Dough-Boy was fain to bring on a great <WSD>baron</WSD> of salt-junk, seemingly quarried out of the solid ox. 
Meaning of the word marked with <WSD> tags:  A particular cut of beef, made up of a double sirloin.