brain dump

brain dump n.  The act of telling someone everything one
   knows about a particular topic or project.  Typically used when
   someone is going to let a new party maintain a piece of code.
   Conceptually analogous to an operating system {core dump} in
   that it saves a lot of useful {state} before an exit.  "You'll
   have to give me a brain dump on FOOBAR before you start your new
   job at HackerCorp."  See {core dump} (sense 4).  At Sun, this
   is also known as `TOI' (transfer of information).