greaaat 

the state of mind when you and your friends are high as fuck and all you can think about is how everything is so greaaat.

Damn Angel that steamroller was greaaat and so is life right now.

greaaat by greaaat March 4, 2013

Greatatious 

When you think tenacious D is so great that you cant think up another word for it.

Tenacious D is so fucking cool he is like...like....greatatious!

OR

Tenacious D is so fucking cool he is like...like....great-fucking-tatious

Greatatious by Gerberking February 27, 2009