Guitar Hero Psychosis 

The delusional belief that one can play the guitar, because "i got four star on hard lol" in the game "Guitar Hero".

"Fred's a mess, he thinks he can play a guitar that isn't tiny and plastic with five huge colored buttons. Me thinks he's got the Guitar Hero Psychosis"

Guitar Hero Psychosis by Ace Ofspade January 11, 2009

Air Guitar Hero 

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.

Air Guitar Hero by SH's de1337ed July 2, 2007

Guitarded

Someone with little to no musical skill on the guitar.

He cant even make an Em, he must be guitarded.

Guitarded by Malcolm November 3, 2003

GitaDora 

A Japanese abbreviation used for Konami's Session Series, Guitar Freaks and DrumMania. Comes from the phoenetic transliteration into Japanese syllables ("GITAA FURIKUSU" and "DORAMUMANIA").

"Konami no GITADORA wa tanoshii desu."
"I love playing GitaDora, but I can only play the Gita part, because I suck at the Dora part.

GitaDora by Naore July 12, 2005

Guitar 

A fantastic invention that can be used for both picking up chicks and pissing off neighbors. Generally involves 6-42 strings, 2-3 pickups, and lots of noise.

Bobby's neighbor called the police because his guitar amplifier was rattling windowpanes.

Guitar by wacko2 April 3, 2011

ghitp 

Go Hard In The Paint

Damn! Wes and Levi go so hard in the paint"ghitp"!

ghitp by Nubby_OWNZ February 21, 2014

Guitar Flap 

The process of a male shaking his exposed genitals from up and down, in which the penis begins to flap.

Jeff’s Mom: Jeffrey, stop waving your naked penis all over the place!
Jeff: it’s called the guitar flap you dumb bitch!

Guitar Flap by Allahman20 August 23, 2021