Brain MRI
Stub is "Wow, this is short" without it being in VSA, which is pretty much a 1-2 sentence "article"
Yeah, cept that's not what it's used for. I mean there is teh "how it might have been planned", and then there's the "this is what it's actually being used for."
Stubs, as i see them daily, are articles that are very incomplete. But they aren't necessarily short, or they aren't necessary bad (as in wrong facts).
I guess what i'm saying is do what you want, i'm hiding. :-)
A stub is any article less than 500 bytes (at least that's when stubbot adds the template). Category:Articles needing expansion and stubs are different.
Again, that's nice in theory, but most of the stubs are longer than that, cause it's what editors over time have stuck on their stubs.