Experimetal 

A genre in metal where no two songs are alike for a band.

The true only way to tell the two songs are from the same band is the vocalist.

Avenged Sevenfold I consider Experimetal because they always try something new instead of the same sound.

Experimetal by NidgeDFX July 16, 2013

Experimental Internet Gas 

This is an absolutely baffling term originating from Marvel's New Warrior's comic reboot. The experimental internet gas gave a character called Screentime (a meme-obsessed teen superhero - literally) his special powers after his grandfather made the gas. This is a legit Marvel creation.

What.

"A Meme-Obsessed super teen whose brain became connected to the internet after becoming exposed to his grandfather’s “experimental internet gas.” Now he can see augmented reality and real-time maps, and can instantly Google any fact. Does this make him effectively a genius? He sure acts like it does."

Experimental Internet Gas by Clockwork Caracal March 19, 2020

Experimental MRE 

Military slang for a "sensitive item" (ie weapon, GPS, radio) that has been lost in the field or stolen. Jokingly referred to as an Experimental MRE (Meal Ready to Eat) which are field rations.

Bravo Company lost an Experimental MRE. They're on lockdown until somebody finds them.

Experimental MRE by robocheng December 4, 2013

experimental error 

A mistake made while experimenting.

Jimmy: Shit dude, I shouldn't have touched Steve's sack like that!
Chad: Sounds like you made an experimental error.

experimental error by a big guy October 1, 2015

Experimentality 

where a certain person loves to experiment and try new things, because it sounds challenging, risky, and fun. Especially when it comes to sexual things.

boy: "I bet getting head while driving is fun"
girl: "you want to try it?"
boy: "I love your experimentality."

Experimentality by Rockin'it December 3, 2009

experimental music 

Music that uses non traditional sounds, techniques, compositional elements, or performances.

The record labels Erased Tapes and Mythical Records both release quality catalogs of experimental music.

experimental music by Experimental Music and Art December 1, 2014

experimentalist

Some who tries new and or different experience sexually

A experimentalist couple went to a Subway station and had public sex

experimentalist by The Experimentalist July 31, 2018