This word combines fucking-amazing-and awesome in to one totally famasome word. Invented in the year 2010 by TTR it quickly became a word used in any situation. Similar to but not directly related to the Famas on COD.
17 yr old gamer: Dude did you see that sweet triple kill on COD?!
Me: No, but I just nailed my girlfriend.
Me: But you're still famasome for that.
17 yr old gamer: Famas is fatal!