This is a statement you would use to say "Well,
good for you!" but with a lot harsher meaning of sarcasm than the above phrase - crossing over into the territory of "Did you now, well
good for you, but to be
honest, I really don't give a flying fuck!"
Just see the film
Aliens - where the soldier that's whinging all the
time, played by Bill Paxton says "well, whoopie
fucking doo" it - that's a perfect example!