noun (1): "a brane" - an act of braneing (also exclamatory: "brane!", shouted when a brane occurs)
noun (2): "the brane" - within a close-knit group, the "collective consciousness" of all people who know about braneing and brane with each other on a regular basis; one's own brain
The term "brane" began within a small group of friends online who always ended up posting the exact same thing to message boards at the same time, which eventually led to one person changing the spelling of "brain" to "the brane" to create a unique in-joke in reference to the people involved "sharing one brane". It grew into other forms from there and has since also spread to a few small non-internet groups.
At least one other group started a very, very similar idea called "the brain" around the same time and completely independently (which in itself is a "brane", one could say).
"Me and my mum seriously braned this morning."
n(1). "Was that a brane?" ... "Yeah, dude! Brane!"
n(2). "The brane shall conquer all!!"
"I have way too much homework tonight; the brane is sooo ded."