1. (n.) A term referring to the rejection and resistance of the popular social network known as Facebook, founded by Mark Zuckerberg.
2. (v.) The act of deleting one's Facebook account.
Non-Facebooker: "So, I finally decided to delete my Facebook account and it feels great!"
Facebooker: "It's like you told Facebook to suck-it!"
Non-Facebook: "It's more like I told Facebook to Zuck it!"