Top definition
G-Stone 90s or Grimey Savages is a gang leaded by Bobby Shmurda.
All my niggas GS9 and we the shit.
by FettiGS9 May 27, 2017
Get the merch
Get the gs9 neck gaiter and mug.
Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
Get the merch
Get the Smooth Brain neck gaiter and mug.