sentence: i also want to know why he calls short home runs ` street pieces , ' and home runs that come in the last at-bat of a game ` walkoff pieces ' ... '' although the term originally was coined with a negative connotation , in reference to the pitcher ( who must '' walk off '' the field with his head hung in shame ) , it has come to acquire a more celebratory connotation , for the batter who circles the bases with pride with the adulation of the home crowd .