1 definition by J-Sim

1. Someone who has little or no life and spends most of, if not all, their time playing Guitar Hero 1 or 2.

2. Or, someone who has completed a particularly difficult song on any difficulty and won't stop bragging about it.
1. "Hey, do you know what ever happened to Dave?"

"Yeah didn't you hear, he's a guitar hero now."

2. John talked all period about his gaming prowess, he's such a fucking 'guitar hero'.
by J-Sim May 23, 2007
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