Origin: The episode of Jersey Shore when Pauly D's girl kept following him around as he hung out with friends on the boardwalk, and then called the house 3 times in a row to find out where he was.
Girl: "Why didn't you call me last night? Where were you? Who were you with? I called you 3 times and you never called me back and I KNOW you got my messages!"
Boy: "OK, seriously, you are stalking my life on the boardwalk right now."
Boy: "Hey, so you're single now? You dated for what, 7 months? And your ex transferred schools?"
Girl: "How did you know all that?"
Boy: "I checked your Facebook."
Girl: "Could you stop stalking my life on the boardwalk?"