When you get two songs mixed up because they were both playable in a Guitar Herogame.
Person 1: Did you know the theme song from Top Gear is based on a Rush song?
Person 2: Don't you mean Jessica by The Allman Brothers Band?
Person 1: Your right, that was a Guitar Hero mix-up.
The act of playing an air plastic Guitar Hero guitar instead of playing a normal air guitar. Most commonly accompanies hearing a song that is featured in Guitar Hero on the radio, a CD player, or an mp3 player.
We were driving down the road when Iron Maiden's "Trooper" came on the radio. Immediately, and unconsciously, we all began to play air guitar hero.
A person who plays music in a band or solo (most commonly Indie Rock or other hipster music) who has no or very little talent yet feels compelled to strut around or just generally act like a "Rock Star". Most commonly found in cities with "great music scenes" such as Austin or Seattle and simply revitalizes the idea of empty egotism over any substance. People who want to act like "Rock Stars" for the status symbol, but actually know very little about music itself. So therefore people with the exact same talent and delusional sense of self-importance that a person playing the video game "Guitar Hero" would feel.
I went to the show last night and it sucked, they were all just a bunch of Glorified Guitar Hero Players douche bags.