Top Definition
When you know something about someone before they tell you face to face due to their facebook post.
hey man how was Hawaiin Falls?

How did you know I went to Hawaiin Falls?

Facebook Knowledge bro.
by thatguy7765445 June 29, 2010
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×