1 definition by Merc767

Top Definition
The Adult version of Roblox, it also costs money.
Guy 1: "Dude I just built a spaceship on Roblox!!!"
Guy 2: "Be a man and buy Garry's Mod you pussy."
by Merc767 December 19, 2010

Mug icon
Buy a Garry's Mod mug!