hardphone 

Not a softphone. A hardware VOIP phone or just a POTS phone.

Why are you using the crappy hardphone we are fully SIP compliant?

hardphone by David Sweet April 19, 2006

headphone dent 

A condition that occurs when one wears headphones for an extended period of time, forcing the hair on the center of one's head to be pressed down, creating the appearance of a dent in the center of one's head.

My brother had a killer headphone dent after he spent all day in his room watching YouTube videos.

headphone dent by quickstep7 January 2, 2010

RIP Headphone Users

When people upload videos that are unnecessarily and surprisingly loud, even at normal volume, giving the impression that the loudness killed people who use headphones due to their proximity to the ears.

YouTube video: "Barney sings I love you"
Audio (volume X9999): "I LOVE YOU YOU LOVE ME WE'RE A HAPPY FAMILY!"
Comment: RIP Headphone Users

RIP Headphone Users by udusers1 October 23, 2011

Headphone Blocked

The result of having a conversation with someone and getting no response. Then turning around and realizing that person had his headphones on this whole time.

Mario: Yo Mike I can't believe you cut this guy from your fantasy basketball team. He's really been lighting it up lately. (Long pause.......Turns around and sees Mike listening to his headphones)

Mario: Fuck!! I just got headphone blocked.

Headphone Blocked by gottimafia February 4, 2010

iPod headphones 

the headphones created by Apple, they are the biggest pain in the ass because they will tangle up even if you are not using your ipod.

Don't ever turn your back on your ipod headphones because they will tie themselves into a friggin' knot, or bundle up like a ball of yarn in Grandma's house.

iPod headphones by #1stunna' January 2, 2008

headphones 

(n.) A socially acceptable “I'm ignoring you.” device.

We talked to him early this morning, but he's got his headphones on.

headphones by tuff stuff December 14, 2015

Headphone Hair 

When you've been wearing over-the-head headphones on big hair, like an afro, for some time, part of your hair becomes much lower than the rest. Now you've got headphone hair and may or may not look weird.

After wearing my headphones in my sleep, I woke up with the worst case of Headphone Hair.

Headphone Hair by immortalus June 2, 2010