Definitions by GoVolsTN

rockbrain 

Offensive slur for Tennessean. Particularly of the stereotypical, hick nature, but not necessarily. From the phrase "Rocky Top" that refers to the geological characteristic of Tennessee, but it actually refers to the fact that Tennesseans have rocks for brains.

Fucking rockbrains can't stop leaving their keys and loaded guns in their running cars.

Chattanooga is nice, but it's full of rockbrains.

rockbrain by GoVolsTN September 30, 2020