While watching The Phantom Menace back in 1999, during the opening scene of the movie, where Obi-Wan and Quigon are on the trade federation ship as ambassadors... the ship that brought them there is betrayed and blasted while it's in the hangar of the ship.
The female captain has just enough time to yell "shields up!" when she sees the turret come down from the ceiling to blast them, and even though I knew that's what she had said, it sounded a lot like "Geosurface!" to me.
I found this amusing because, I thought about someone being nerdy enough to yell that as their ship, say... crashed into a planet's surface. The idea that someone would be an instant from death, and instead of yelling "oh fuck!" or something, would choose to go with something hyper-nerdy/scientific sounding, which isn't even a real word... well, as I said. It amused me.
So I started using the name in Counter-Strike etc.