There are many threads (I've listed a few below, under "Related") discussing the difference -- or lack thereof -- between the slangs "being down for something" or "up for smth". There seems to be no uniformity in regard to them and I just wanted to ask the community if that's true and it can vary wildly from place to place.
In Ontario, I never hear people saying "Are you up for some pizza?", almost invariably it's "Are you down for some pizza? (I'm so down!)". But from what I read on the internet, this seems not to be the case for most people.
A few of the answers say that "down for" would be more "serious" or committed, but from my experience it makes no difference.
So question: where you live, is there any difference between saying "would you be down for X" or "would you be up for some X"? (E.g, is one more usual than the other?)
Related: