This is an expression in Dutch that you can use whenever a machine refuses to work or you don’t know how to turn it on exactly, for instance an old car, a second hand copier, a coffee machine, a brand new computer … So it isn’t necessary that the object actually t a l k s (praat > praten = to talk ).
If somebody asks you to do something, and you think this is too ridiculous or simply impossible to do, you can give one of the following answers. They all mean more or less “No way!” or “Forget it”.