Top Definition
The addicting website that stomped Myspace into its final grave, called Facebook. The site that our world revolves around today. Also commonly referred to as Crackbook due to its overall addictive power.
Dude can I use your computer when your done?

Hold on I am checkin my Firebook... what do you need it for?

Man you know I've gota check up on my Firebook too... I might have a new comment from a chick thats straight FIRE!

by DurtySouthernPride January 27, 2009

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