It all started back during CP10's roots at SdOP. SdOP was pumped up to start a doubles tourney for its members for the highly anticipated game, Super Smash Bros. Brawl. I was teamed up with Rin, Buster was mad at me because he had no one to team up with. That was when I suggested SMMC. The two got together for the tourney, but they needed a name.
That's when this video comes into play.
https://www.youtube.com/watch?v=bVtwVXMPBY8
At around 2:10 into the video, you'll hear the old man with the banjo say Shit-for-brains, however with his accents, it sounds like "Shitpherbrains". SMMC and I are big fans of AVGN, and as soon as I suggested this name, well, you know the rest of the story. Haha.
Just wanted to share some CP10 history, for those of you who did not know.