I rediscovered an old favorite, User Friendly, and started poking around in the archives. I came across this:
I got the joke/pun and laughed out loud, but then I started wondering what a brane actually was so I went a-lookin' (using define:"whatever" you need defined without the "" in Google's search box) and found this definition at good ol' PBS:
brane: any of the extended objects that arise in string theory. A one-brane is a string, a two-brane is a membrane, a three-brane has three extended dimensions, etc. More generally, a p-brane has p spatial dimensions.
Peabrain. Oh, those physicists!
I wonder what a no-brane(r) is? *gigglesnort*
Whadya mean, I must have one?