headphonaut 

1. the melding of the words headphone and astronaut
2. Someone who listens to music (some would say in excess) on their (often high quality) headphones, often associated with persons into the more atmospheric and trip hop styles of the electronica genre. These persons are often engrossed with 1 or more elements of the music such as production, layering, nuances of sound, etc. and often lean towards introversion.
3. a trip hop group from MS (US)

He is a headphonaut.

headphonaut by LuAnn A. January 11, 2009

Headphonalomia 

A serious disorder that causes an individual to go everywhere and do everything in life with headphones in/on their ears. Sometimes they listen to music. Sometimes they listen to podcasts. Sometimes they listen to the endless existence-questioning chatter of their own mind. The headphones bring a sense of brief anxiety-reducing comfort, like a tortoise and her shell.

I could tell that Cody's headphonalomia was progressing when I caught him at Grandma's funeral with his Beat By Dre's on.

My girlfriend likes to have headphones in when we have sex because she has headphonalomia.

Headphonalomia by Francis_Mantis January 31, 2017

HeadphoneYT 

The most amazing talented and the most well educated swimcordian

WOW HEADPHONEYT IS A COMPLETE GENIUS

HeadphoneYT by Gamer minecraft July 23, 2022