I think what Ragnar is looking for is "deep reflective magic"...

Something like

  | foo bar fooValue |
  foo _ 'hello'.
  bar _ 'world'.
  fooValue _ thisContext tempAt: (thisContext tempNames find: 'foo').
  ^ fooValue

Is this it?

Some languages (Perl, I think, and Logo I am sure) have a trivial 
notation for this kind of thing. But that isn't always a good idea and 
I am glad that Smalltalk makes such a dangerous thing possible yet 
hidden where it is unlikely to be accidently abused.

-- Jecel