Tracking Piehole
<snark>
I was shocked to find out that the word "piehole" wasn't used much prior to 2007'ish.
</snark>
See:
Fascinating, eh?
You can get this information for pretty much any word by keying "DEFINITION PIEHOLE" into the Google search box.
Give it a try!
Here's a couple more interesting examples:
I have no idea how they come up with these statistics.
Or whether to believe them.
Out for now.......
Matt