Phone Herpes iswhen your phonejust turns off. The reason it is called phone herpes is because it spreads, once your friend's phone has it, its a matter of time before you have it.
F***ing Phone Herpes, I have to turn it on again!
What happens when you somehow smash the screen of your cellphone and the pixels get all fucked up in a certain area. Pretty soon the fucked-up pixels spread to the entire screen; kinda like herpes.
My friend's little brother left his cell phone in the back pocket of his skinny jeans and sat on it. It now has Phone Herpes.