Facespam
A Facebook app that's like a kid who won't stop asking you for candy. You can't use it unless you invite more friends, and you're just tired of it.
You try to take a quiz but it says, 'Add 5 friends to see your result.' You're like, 'I just wanted to know what color I am.'
You get a message that says, 'You need 10 more friends to unlock this app.' You're like, 'I don't even know who these people are.'
You try to use a game and it says, 'Invite 20 friends or die.' You're like, 'I'm not dying for this app.'