1.) a device used by PS2 online gamers who need an advantage against the competition and suck at the game. It allows the gamer to modify the game settings and become invincible, have unlimited ammo, etc. Can also be used offline for level skips, etc.
2.)a person who uses a code breaker
That fucker just flew threw the air, shot me in the head and then disappeared, he must be a code breaker.