n. An intense rush of intellectual fervor or excitement in response to a stimulus such as recognizing a literary allusion in "The Simpsons" or finally understanding how to do that advanced calculus problem or even just anything really cool. Usually accompanied by inability to formulate actual words and an intense enthusiasm about the subject that induced the braingasm.
That geek had the biggest braingasm after she sawLotR:RotK.
The act of lying on one's back, flat on the ground or flat surface, facing up and looking at the sky, arms and legs wide open.
Best done with well known monuments visible behind the subject, when posing for the picture. Best results are obtained when the subject is slightly tilted sideways as seen from the camera position.
Not to be confused with planking, in which the subject is facing down. Bruning is sometimes (incorrectly) referred as brunning.
An orgasm of the brain, something that would be the equivalent of information sex, something that would make a nerd smile in a kind of creepy, happy way.