The person who is constantly updating their facebook status with their location and letting everyone know EXACTLY where they are.
Usually done with a smartphone that can link their status to a location.
John Smith is at Blockbuster on 34th street.
Don't be such a locationator , no one cares where you are
Shelly Jordan is at Highlands Apartment Homes, Apt 325!
What a locationator , she is just asking to be stalked