The use of another electronic device such as your land line or other cell phone to find your missing cell phone.
Not unlike how bats use "echo location" to find their nesting areas or food, human animals often use "cellco location" to find their missing cell phone.
A more specific When And Where with a Get To The Point kind of question. Perfect for when you're in a hurry and want to set a meeting quickly. Or when some fuckboy tries to ask you out. Or when you're bored and you want to find some niggas to chill with.
Boy: Um, hey wanna go out?
Girl: Who the fuck are you?
Boy: That's irrelevant. Go out with me.
Girl: DateTime Location.
Boy: Uh, I don't know like Tuesday, 3:00, The Park.
Girl: Okay I'll think about it. No. And get the fuck out my face.
Boy: NIGGA!