Buffalo buffalo buffalo buffalo buffalo

Apparently, the title is a valid English sentence.

Here’s the story. First, when I was a grad student in philosophy at Indiana a long time ago, John Tienson gave us the example of:

Dogs dogs dog dog dogs

whose syntax is the same as:

Mice cats chase eat cheese.

We found the -s morpheme unaesthetic, so we came up with

Buffalo buffalo buffalo buffalo buffalo

• Link (via reddit)