1) An intricately organized bundle of organic cables (axons) and processors (cell bodies) encased within the skull. It is
responsible for all human thought and cognition.
2) A fatty
piece of meat lodged in your head that, in males, is often in direct
competition with the BALLS. (For most, the balls win). Also the most popular food item for zombies and Star Jones.
1) The nerdy, sex-deprived
scientist opened up his lab supervisor's skull and was about to examine the guy's BRAIN, when he started to get really hungry, and then deduced
logically that he was indeed a zombie.
2) Jimmy was contemplating whether or not to thrust his schlong into his girlfriend's pooper, when it suddenly became clear that his BRAIN was losing
the contest to his balls.