billboard brow 

a person with AN ABNORMALLY LARGE forehead

Dude, look at that billboard brow across the street!

billboard brow by Will Holt May 17, 2006

Billboard brow 

I word used to describe someone whose forehead is astronomically large. Someone whose forehead space could be used to host the NFL. Someone whose cranium is of such stature, width, and length that it is considered its own continent.

DAMN. Shawty got a Billboard brow. How much you think it cost to rent it out?

Billboard brow by urmom'ssidebitch February 15, 2023