"Rolling Stone" hypothesizes that the song's title is a reference to the phrase "chasing the beetle," further linking the song to Albarn's experimentation with drugs. Albarn commented, "I'm not sure what a Beetlebum is. It's just a word I sang when I played the song to myself. I asked the others if I should change it, but they said no. If it felt right, we decided that we wouldn't tidy it up like we've done in the past. It's about drugs basically."