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.