We name months, after all. The difference is that our months don't directly correspond to the phases of the Moon.

Actually, I just read a book called Tex and Molly in the Afterlife that mentioned various names for the full Moon a few times. I'm not sure whose names for them they were using, though in pretty much every case, they mentioned that somebody else called it something else.

__________________
Gillian

"Now everyone was giving her that kind of look UFOlogists get when they suddenly say, 'Hey, if you shade your eyes you can see it is just a flock of geese after all.'"

"You can't erase icing."

"I can't believe it doesn't work! I found it on the internet, man!"