This is what Google said and was my understanding: glasshole (plural glassholes) (derogatory, slang) A person who wears spectacle frames equipped with PDAs

This is what Google said and was my understanding: glasshole (plural glassholes) (derogatory, slang) A person who wears spectacle frames equipped with PDAs (especially with cameras) that display into the user's eyes, and who acts like a jerk or films inappropriately. [from 2013]