A fork of Rural Dictionary
When a man takes his nut sack gym bag and places it as close to the face of a sleeping victim as possible. A picture is then taken with the balls/victim in the same photo.
Chris fell asleep, so I brained him. Braining is fun, but my nuts get camera shy.
A clusterfuck of neutrons that are supposed to make you smarter but at the end of the day you still cheated on me and got caught you slut Sarah!
Sarah how could you do this to me! At least have the brains to be sorry!
To brain someone is to club them in the head with something, possibly until you see brain leaking out.
That was so sweet when she brained that guy with a brick.