The popular social networking site that moonlights as a black hole for actual social activity.

When you eat dirt for the first time and leave your family to build a shack in the woods

Common: Discovering how perfect other friends lives are through Facebook making you feel like a waste.

Alternative definitions:

1. Someone engrossed with the social mechanisms of Facebook. Miserably procrastination on facebook due to a lack of responsibilities or self interests.

2. Personal plethora of frequent Facebook sins.
Facebook sin, i.e. breaking social media norms.

3. Facebook pictures consisting solely of clubbing culture.

4. The Facebook masquerade of a perfect life.