Possible Clues:

• Baseball Hall-of-Famer Duke
• Twisted Sister frontman Dee
• More rudely sarcastic
• "The Duke of Flatbush"
• Duke of the Dodgers
• Baseball's Duke
• Brooklyn center fielder Duke
• Baseball Hall of Famer Duke
• The old rifle is more nasty, in a manner of speaking
• More nastily derogatory about rackets being raised