From a news source:
The advertisements that ran on about 200 buses across the city in recent months carried posters displaying a suggestively posed woman in hot pants kneeling among a pile of books beside the snappy slogan "Read Books, Get Brain."
A tagline for a surprisingly longlived advertising campaign by Akademiks. The ads featured a hot chick sitting on a stack of books in a clearly suggestive position. See brain and get brain.
Ayo man, that Akademiks ad said if I read books I'ma get brain, b! You see that? "Read books, get brain". That ill wops homie! Watch I'ma go read something now.
dissatisfaction with ones' own, or anothers mental performance. -suggestion that in this time of 'transplants', one could procure a new 'mind' somewhere, and make out a bit better!
when i closed the patient up, i left a saw inside; i'm going to have to get a new brain, or lay off the PCP!!