As ballplayers, we like to take common everyday words and smash them together into a joyous exclamations. This happens most often when someone hits it out of the ballpark. He’s gone yard, yabo, big fly or downtown. Hit a ding dong, a homer, a jack, a bomb, a round tripper, a dinger, or a 4 bagger.
All these phrases attempt to capture the pure excitement of the home run.