For the first time, my son Arthur (my 9 year old son) knew something that I didn’t.
child: “Do you know what a blue moon is?”
me: “Uh, when the moon looks like it is blue????”
child: “No, it’s when there is more than one full moon in the same month”
me: “Really? Impressive”
http://en.wikipedia.org/wiki/Blue_moon
so, explains the expression “once in a blue moon” for something rare (like two full moons in one month). don’t get me wrong, i’m glad to have learned something new today. just not ready to learn it from my eldest child.
This is where it all goes downhill…