A long time ago a buddy and I were at the Melbourne Cricket Ground (MCG) in Australia thoroughly enjoying the cricket match due to the amazing location of our seats. I turned to my Australian companion and sad “Man, we really lucked out.” He looked at me in disagreement and said “What do you mean? These seats are great mate”.
It turns out the phrase “lucked out” means “unlucky” in Australia. And for Americans, it means the exact opposite.
If one examines these two words, “luck” and “out”, it seems logical that the Australian interpretation is correct. Luck is no longer present. It is “out”.
I’d say this is a case where we say it wrong.