Sonic Youth's Thruston Moore urged Nirvana to let this song, labelled as "M.V." on some official releases, open In Utero. Instead, the band included it on the All Apologies single, and later, on With the Lights Out. Sonic Youth would later cover the track, as would Red Hot Chili Peppers guitarist John Frusciante. The chorus is simple, and likely explains the lack of mainstream exposure for the song: on top of singing about a moist vagina, Cobain simply screams one word over and over in the chorus: Marijuana. There are plenty of other obscure Nirvana tracks, and even a few still unreleased - are there any we missed? Let us know in the comments below!