earphone phaker
A person who fakes being into music just so they can hear your conversations and think you’re totally clueless. They might even laugh at you or record you.
He had his earphones on like he was in a concert, but he was laughing at my awkward conversation with my crush.
She was pretending to be into her music, but she was recording my rant about my boss.
He was listening to his playlist, but he was hearing my friend talk about how ugly he is.