ulx

ULX is an administration addon (mod) for Garry's Mod. Used by many Garry's Mod servers.

Person1: What was the ulx command to freeze someone?

Person2: !freeze name

Person1: Thanks.

Physgun

Shortened version of Physics Gun. Used in the game Garry's Mod to move props/objects in the map and freeze them in place after the object is moved to the desirable spot. Typically emits a blue laser and creates a blue halo around the object that is being moved.

Person1: What's a Physgun?

Person2: It's the same thing as a Physics Gun.

Person1: Oh, can I kill something with it?

Person2: It's not that kind of gun.

glua

Garry's Mod adaption of the Lua programming language. Used to create addons.

Mark: Hey, do you want to buy my DarkRP printer addon that I made using glua? I swear it's not the same as the rest of them!!!
CodeBlue: Please stop messaging me