When someone unintentionally calls you on their cell phone while it is still in their purse. Usually the result of digging around their purse or putting something in it, which results in unintentionally speed dialing a person. The person on the other end can usually hear garbled conversations either live in person or on voicemail for an undefinite period of time that can be lengthy.
Hey, I think you just purse called me. Please hang up your phone so that I'm not spying on your conversations.