When all you can think about is about Burning Man even though you have a job, deadlines, a wife, a mortgage, pets, etc. The condition of not being able to focus on anything else but Burning Man.
"Baby , I'm so sorry I forgot to mail in the mortgage check this month, I've got Burning Brain."
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"