It's clearly something that was happening while the tape was left running. But the fact that the band kept playing it for over 15 minutes is pretty crazy. I mean, there's two chords more or less, then it descends into solos upon solos. It's pretty hilarious. And then the tape ends, which could imply that they played it for another 15 minutes. Or a whole day. Who knows!
I mean, the song isn't going to change anyone's life, but it's fun to listen to, and serves it's purpose for Vieuphoria's credits well. And Billy & James can really play the guitar. Fun all around.