This is a tap of random, misc, useful and less useful Homebrew formulae.
If you don't have Homebrew already installed go shamefully on their homepage and install it. Seriously, it's incredibly simple.
Once you've done that, just brew tap michelangelo/homebrew-drunk and brew install <formula>.
Alternatively, you are free to install individual formulae directly: brew install https://raw.github.com/michelangelo/homebrew-drunk/<formula>.rb.
brew help and man brew are enough in the vast majority of cases.
This is not rocket science at all, Homebrew is a wonderfully crafted piece of software. Just go to their wiki for more detailed information.