The lyrics you provided are actually not from the Grateful Dead's song "Around and Around." These lyrics belong to the song "Reelin' and Rockin'" originally written and performed by Chuck Berry. The Grateful Dead also covered this song in their live performances. The song "Reelin' and Rockin'" is an upbeat rock and roll tune that describes a lively and energetic party or dance event. The singer expresses their excitement as they join in the dancing and clapping, fully enjoying the rhythm and the atmosphere. The lyrics highlight the ecstatic atmosphere of the party, describing how the music and dancing never stop until the moon goes down. The reference to the doors being locked and then flying back open when the police knock adds to the sense of chaos and unrestrained fun. Overall, the meaning of the song revolves around the joy and exuberance found in dancing and rocking out to music, creating a lively and energetic atmosphere of celebration. It's important to note that these lyrics are not from a Grateful Dead original song, but they were performed by the band in their live shows as a part of their musical repertoire.