Moe's boxing alter ego is named Kid Moe. He is seen in the episode "The Homer They Fall", which aired in season eight.
In the episode "The Homer They Fall", Moe takes up boxing and adopts the name Kid Moe. He is trained by former champion Drederick Tatum, and even manages to win a few fights. However, Moe eventually quits after realizing that he is too old and out of shape to continue competing.