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A clueless nobody who can't tell a mouse from a monitor and thinks a keyboard is just a fancy coaster.
My friend tried to play WoW and just hit A every 2 seconds. I called him a faceroller and he cried.
This guy used his face to spam fireball and got first place. I was stunned.
I saw a kid press his nose on the keyboard and won a duel. That's a faceroller, baby.