When a sexual partner goes rooting around through your phone looking for shit to get pissed off at you about.
Be it contact with a friend they don't like or a past encounter your trying to catch up with.
Maggie: Why's Georgio pissed at you?
Susan: I left my phone at his place.
Maggie: Did that dumb ass go cell phone rummaging again?
Susan: Yes! and I was talking with my ex Troy about completely innocent things.