Haxor

Haxor is the leetspeak way of stating someone is a computer or game "hacker." People often use haxor online to describe hackers that break into networks, etc., but they may also use it to refer to gamers cheating in a match.

For example, you may rave about your co-worker's hacking abilities, "Glen is such a haxor. He once got into his high school's records and gave everyone an A." Or, you might complain about playing a match with a known cheater, "last time i went from first to last because jon cheated. hes a haxor, and i want nothing to do with him."