Headphone Headbanger
Someone who listens to loud/heavy/violent/extreme/etc music, but is forced to listen through headphones due to circumstance.
Guy one: Man, I love Metallica, but I have to listen with headphones because my mom hates it.
Guy two: I guess that makes you a Headphone Headbanger.
Guy two: I guess that makes you a Headphone Headbanger.