When a seemingly normal guy/girl is on the phone with you and proceeds to have phone sex with you when you don't want it, narrating both sides, so you have no choice but to listen in total awe.
Bob: I was on the phone with this chick last night, and we were having a pretty normal conversation, then she phone raped me, I haven't been the same ever since.
Friend: I warned you about her.
Sam- "I want to **** your **** so bad right now."
Helga- "I'm tired and need to study."
Sam- "I just want to ***** your ***** for ***** and ******."
Helga- "Stop before you phone rape me..."
when someone unwillingly and reluctantly gives someone else their phone number because they were forced to agressively, they were emotionally manipulated or they felt sorry for them.