Sentence:  "If it was the last word I ever spoke, Puddock, you're a good-natured—he's a gentleman, Sir—and it was all my own fault; he warned me, he did, again' swallyin' a dhrop of it—remember what I'm saying, doctor—'twas I that done it; I was always a <WSD>botch</WSD>, Puddock, an' a fool; and—and—gentlemen—good-bye." 
Meaning of the word marked with <WSD> tags:  One who makes a mess of something; a bungler.