While a regular hour has sixty minutes, a Facebook-hour is usually shorter; due to the unnecessary amount of time spent on Facebook when one should be doing other activities.
It can vary from fifty minutes, all the way down to just fifteen minutes left on an hour.
Mark: Why did it take you five hours to do your math homework yesterday?
Tim: It took two and a half, actually, but was on Facebook half the time
me to him: I found it in the cabinet.
her to us: Found what in the cabinet?
me: don't worry about it (super tired. it's not important)
her: no tell me. I want to know!
me: ... you have facebook syndrome
me to her: hahahah yah so after that I-
him to us: haha, what are you guys talking about?
me: .... <- I say dots
When one wears a suit/outfit to an event and the pictures are posted on facebook, which subsequently limits the use of the suit for the following events to come.
yeah, don't tag me on facebook because I need to wear it for sukhdeep's wedding next month and I don't want to commit facebook suiticide.