This is an odd designation that I wasn’t aware of. From SpaceWeather.com’s website, here’s an interesting (if unromantic) moniker for the full moon (which we’re unlikely to see in the next day or two).

“Tonight’s full Moon has a special name–the Worm Moon. It signals the coming of northern spring, a thawing of the soil, and the first stirrings of earthworms in long-dormant gardens. Step outside tonight and behold the wakening landscape. “Worm moonlight” is prettier than it sounds.”