Sentence:  One of his [Casey Stengel's] more practical creations? The <WSD>butcher boy</WSD>, in which a batter would draw the infield in by squaring up to bunt ... only to quickly pull it back and take a short, downward swing at the ball. 
Meaning of the word marked with <WSD> tags:  Batting at a pitch with a short swing from a bunt position; a slash, a slug bunt.