Guinar 

When you really want to say retard but there are people sensitive to the word around you say guinar

Sure do wish Jeff over there would stop being such a f***king GUINAR. I’m

Guinar by ThatManChild November 28, 2019

flying V guitar player 

Someone who plays the style of guitar that's called a flying V.

Dale's a Badass flying V guitar player! Pure raw talent & genius

flying V guitar player by Starchylde April 16, 2017

Canadian Air Guitar 

An oral sex act similar to cunnilingus, except the female's genitalia is talked down to and criticized in disapproval.

Logan's Canadian Air Guitar skills have cost him his last three relationships.

Canadian Air Guitar by Van Jermaine October 13, 2016

Guitarist 

The guy who your girlfriend left you for.

Dude... She left you for the guitarist of your own band!!!

Guitarist by qwertyuioPasdfghjkLzxcvbnM July 23, 2012

Electric Guitar 

An Instrument that produces a current of power, and sounds like lightning

Man 1: Wow what's that sound?
Man 2: Dude, that's a fucking electric guitar.

Electric Guitar by Mineralogie March 18, 2017

Guitnarcolepsy

Falling asleep whilst playing the guitar, a nocturne in the key of Z.

Happens every time. He starts to practice and is soon having a rest, a clear case of guitnarcolepsy.

Guitnarcolepsy by Monkey's Dad January 19, 2023

Guitar Hero endurance 

A measure of one's ability to play extended fast sections in Guitar Hero and Rock Band before before becoming utterly exhausted and not being able to finish the song.

"I can't make it through Raining Blood - I can nail the main section for the first thirty seconds, but then my vision begins to narrow and my lips begin turning blue."

"Dude - sounds like you need to work on your Guitar Hero endurance."

Guitar Hero endurance by Scott Shumaker February 12, 2008