This self-titled song is about a day spent getting high and smoking weed, a “green day.” Things usually normal, like insects, suddenly become interesting. Billie begins to question the ordinary, such as why 1+1 makes 2.

Before the release of 39/Smooth, the band was called Sweet Children. The change to Green Day reflects their fondness for marijuana. In an interview on HBO’s Real Time with Bill Maher, Billie Joe Armstrong confirms the pot inspired name.

We were trying to be like the Cheech and Chong of punk rock.