Deep-Friending

Deep-friending: to friend someone on facebook as a means for something deeper than just friendship. i.e. gathering information, viewing pictures, stalking in general.

Guy 1: So my girlfriend just called me out on all these pictures that were posted of me on facebook, but i coulda sworn she couldn't see them.

Guy 2: Dude, she's Deep-Friending the shit out of you. Soon your mutual friends will be your entire friends list man. Run.