There are several connotations that are associated with the term “May Day”. It originally was used to describe a pagan holiday that in many countries celebrates the end of the winter half of the year (at least in the Northern Hemisphere). One of the earliest celebrations was the festival of Flora the Roman Goddess of flowers. During the celebration it has become traditional to dance around the May Pole to celebrate the wonders of spring and rebirth of life. This of course fits very well within the baseball commentary. Ok, that might be a stretch but in my universe everything is connected with baseball so you have to go with the flow on this one.