A person on Facebook who sends you a friend request for the sole purpose of expanding their farm on Farmville. Farmville is a social networking game on Facebook that is absolutely annoying. People who play it are constantly messing up your wall with all sorts of bullshit about how they need you to come over and help on your farm. Which you could give a fat rats ass about.
Hey man I saw where you are playing Farmville. Yep. Dude you are messing up my wall. Oh I am sorry but are you going to be my neighbor on Farmville? No you are nothing but a Farmville weasel.