starve: lowers the supply voltage for non-linear tone changes which include gating, decreased headroom and clarity and decreased frequency bandwidth. clockwise is full 9V.
Well, my dumb caveman brain had stuck the idea that "more voltage = better" so I've tended to leave the starve knob full aside from trying to make mad noises.
That is, until recently when I've found that different settings for the starve control can add really interesting and varied textures to the sound, especially combined with all the other tone options.
Every time I think I need a new fuzz (this week it's been a super tonebender clone), I play the Buzzz, find a new sound, and suddenly I don't want a new fuzz any more.
Here's to the Buzzz, the most versatile box I've ever trodden on
