As Joey finished inhaling a small, not so tasty cloud of illicit contents from his marijuana smoking device, he uttered "bitch this shit's fant, pack another bowl."
When something or someone is sooo good,you have to join all the words "epic","awesome","great",and "fantastic" to show how excellent it is or they are....
Used this to describe a book someone gave me
Guy #1: Hey dude,I just got this EPI-AWE-GREA-FANT-IC book yesterday...
Guy#2: That's great,dude...