Great Baseball Nicknames: ‘Bad Henry”/ ‘The Hammer’/ ‘Hammerin’ Hank’- Henry Aaron. The great Henry Aaron died earlier this year. One of the all-time greatest baseball players. I can’t think of anyone who was more consistent year to year- and he did it all pretty quietly until the 1970’s when everyone kind of woke up to the possibility that he had a shot at breaking the home run record of Babe Ruth’s 714. Aaron did it- ending up with 755 career home runs. The pitchers in the National League were aware of Henry Aaron all along though- they thought of him as ‘Bad Henry’- there was simply no way to pitch to him. Two other nicknames he had which were more popular with the fans were ‘The Hammer’ and ‘Hammerin’ Hank’- which were given to him by the media due to his great abilities with a baseball bat in his hands.